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Composition Comprising 2,3,3,3-Tetrafluoropropene And 1,1,1,2-Tetrafluoroethane, Chillers Containing Same And Methods Of Producing Cooling Therein

Patent No. EP2558544 (titled "Composition Comprising 2,3,3,3-Tetrafluoropropene And 1,1,1,2-Tetrafluoroethane, Chillers Containing Same And Methods Of Producing Cooling Therein") was filed by EI DU Pont DE Nemours on Apr 12, 2011. The application was issued on Sep 4, 2024.

Patent Summary

Patent Family

Patent Oppositions (3)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
DAIKIN INDUSTRIES	Jun 5, 2019	HOFFMANN EITLE
ARKEMA FRANCE	Jun 3, 2019	ARKEMA PATENT
MEXICHEM FLUOR DE CV	May 29, 2019	POTTER CLARKSON

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

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Aug 8, 2024
Decision to maintain the European patent in amended form
Aug 8, 2024
Decision to maintain the European patent in amended form
Jul 26, 2024
(Electronic) Receipt
Jul 26, 2024
Filing of the translation of the amended claims
Jul 26, 2024
French translation of claims
Jul 26, 2024
German translation of the claims
Jul 26, 2024
Letter accompanying subsequently filed items
May 7, 2024
Communication of bibliographic data
May 7, 2024
Communication to opponent concerning maintenance
May 7, 2024
Communication to opponent concerning maintenance
May 7, 2024
Communication to opponent concerning maintenance
May 7, 2024
Communication with request to file translations
Apr 29, 2024
Maintenance of the patent with the documents specified in the final decision
Mar 19, 2024
Refund of fees
Mar 15, 2024
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Mar 15, 2024
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Mar 15, 2024
Maintenance of the patent with the documents specified in the final decision
Mar 6, 2024
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 6, 2024
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 5, 2024
F3345 Forwarding of submissions to parties
Mar 1, 2024
F3014 Oral Proceedings: Order cancelling/postponing
Feb 29, 2024
(Electronic) Receipt
Feb 29, 2024
Letter accompanying subsequently filed items
Feb 29, 2024
Withdrawal of an appeal
Feb 20, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Feb 20, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Feb 6, 2024
F3345 Forwarding of submissions to parties
Jan 31, 2024
(Electronic) Receipt
Jan 31, 2024
Letter accompanying subsequently filed items
Jan 31, 2024
Letter dealing with oral proceedings during the appeal procedure
Jan 23, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 23, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 11, 2024
F3011.1 Oral Proceedings: summons
Jan 11, 2024
F3011.1 Oral Proceedings: summons
Jan 10, 2024
Letter accompanying subsequently filed items
Jan 8, 2024
F3010 Oral proceedings: order for summons
Oct 31, 2023
Communication of amended entries concerning the representative
Oct 31, 2023
Communication of amended entries concerning the representative
Oct 30, 2023
Communication of amended entries concerning the representative
Sep 20, 2023
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Sep 20, 2023
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Sep 20, 2023
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Sep 12, 2023
(Electronic) Receipt
Sep 12, 2023
Letter accompanying subsequently filed items
Sep 12, 2023
Withdrawal of an opposition
Jul 24, 2023
Composition of the board (T)
Dec 20, 2022
Request concerning representative opponent
Nov 22, 2022
F3345 Forwarding of submissions to parties
Nov 22, 2022
F3345 Forwarding of submissions to parties
Nov 17, 2022
(Electronic) Receipt
Nov 17, 2022
Letter accompanying subsequently filed items
Nov 17, 2022
Letter relating to Appeal Procedure
Nov 4, 2022
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Nov 4, 2022
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Nov 4, 2022
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Nov 4, 2022
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Oct 31, 2022
(Electronic) Receipt
Oct 31, 2022
Letter regarding the opposition procedure (no time limit)
Oct 31, 2022
Letter relating to Appeal Procedure
Oct 19, 2022
Refund of fees
Oct 18, 2022
F3345 Forwarding of submissions to parties
Oct 18, 2022
F3345 Forwarding of submissions to parties
Oct 18, 2022
F3345 Forwarding of submissions to parties
Oct 11, 2022
(Electronic) Receipt
Oct 11, 2022
Letter accompanying subsequently filed items
Oct 11, 2022
Withdrawal of an appeal
Aug 17, 2022
F3345 Forwarding of submissions to parties
Aug 17, 2022
F3345 Forwarding of submissions to parties
Aug 17, 2022
F3345 Forwarding of submissions to parties
Aug 11, 2022
(Electronic) Receipt
Aug 11, 2022
Amended claims with annotations
Aug 11, 2022
Citation in appeal procedure - 038
Aug 11, 2022
Citation in appeal procedure - 039
Aug 11, 2022
Citation in appeal procedure - 040
Aug 11, 2022
Citation in appeal procedure - 041
Aug 11, 2022
Citation in appeal procedure - 042
Aug 11, 2022
Claims
Aug 11, 2022
Letter accompanying subsequently filed items
Aug 11, 2022
Reply to appeal
Jul 15, 2022
F3345 Forwarding of submissions to parties
Jul 15, 2022
F3345 Forwarding of submissions to parties
Jul 15, 2022
F3345 Forwarding of submissions to parties
Jul 12, 2022
(Electronic) Receipt
Jul 12, 2022
Cited document during appeal procedure
Jul 12, 2022
Cited document during appeal procedure
Jul 12, 2022
Cited document during appeal procedure
Jul 12, 2022
Letter accompanying subsequently filed items
Jul 12, 2022
Reply to appeal
Jul 7, 2022
F3345 Forwarding of submissions to parties
Jul 7, 2022
F3345 Forwarding of submissions to parties
Jul 7, 2022
F3345 Forwarding of submissions to parties
Jul 6, 2022
(Electronic) Receipt
Jul 6, 2022
F3040 Term extension: Yes/No
Jul 6, 2022
F3040 Term extension: Yes/No
Jul 6, 2022
F3040 Term extension: Yes/No
Jul 6, 2022
F3040 Term extension: Yes/No
Jul 6, 2022
Letter accompanying subsequently filed items
Jul 6, 2022
Request for extension of time limit
Jul 1, 2022
(Electronic) Receipt
Jul 1, 2022
Letter accompanying subsequently filed items
Jul 1, 2022
Reply to appeal
Mar 3, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 3, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 3, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 3, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 3, 2022
F3345 Forwarding of submissions to parties
Mar 3, 2022
F3345 Forwarding of submissions to parties
Feb 28, 2022
(Electronic) Receipt
Feb 28, 2022
(Electronic) Receipt
Feb 28, 2022
Amended claims with annotations
Feb 28, 2022
Amended claims with annotations
Feb 28, 2022
Amended claims with annotations
Feb 28, 2022
Auxiliary request during appeals procedure - 01
Feb 28, 2022
Auxiliary request during appeals procedure - 02
Feb 28, 2022
Auxiliary request during appeals procedure - 03
Feb 28, 2022
Citation in appeal procedure - 031
Feb 28, 2022
Citation in appeal procedure - 031
Feb 28, 2022
Citation in appeal procedure - 032
Feb 28, 2022
Citation in appeal procedure - 032
Feb 28, 2022
Letter accompanying subsequently filed items
Feb 28, 2022
Letter accompanying subsequently filed items
Feb 28, 2022
Statement of grounds of appeal
Feb 28, 2022
Statement of grounds of appeal
Jan 3, 2022
F3204 Communication of the file number to the parties
Dec 20, 2021
(Electronic) Receipt
Dec 20, 2021
F3204 Communication of the file number to the parties
Dec 20, 2021
Letter accompanying subsequently filed items
Dec 20, 2021
Notice of appeal
Dec 14, 2021
(Electronic) Receipt
Dec 14, 2021
Letter accompanying subsequently filed items
Dec 14, 2021
Notice of appeal
Dec 1, 2021
(Electronic) Receipt
Dec 1, 2021
Advice of delivery
Dec 1, 2021
Letter accompanying subsequently filed items
Nov 30, 2021
Communication about missing advice of delivery
Nov 4, 2021
(Electronic) Receipt
Nov 4, 2021
Advice of delivery
Nov 4, 2021
Letter accompanying subsequently filed items
Oct 25, 2021
Advice of delivery
Oct 25, 2021
Advice of delivery
Oct 21, 2021
Annex to the communication - opposition
Oct 21, 2021
Decision of the Opposition Division and instruction
Oct 21, 2021
Druckexemplar in opposition procedure
Oct 21, 2021
Grounds for the decision (Annex) - opposition
Oct 21, 2021
Interlocutory decision in opposition proceedings
Oct 21, 2021
Interlocutory decision in opposition proceedings
Oct 21, 2021
Interlocutory decision in opposition proceedings
Oct 21, 2021
Interlocutory decision in opposition proceedings
Oct 21, 2021
Means of redress
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Scanned annex to a communication - opposition procedure
Oct 21, 2021
Scanned annex to a communication - opposition procedure
Oct 21, 2021
Scanned annex to a communication - opposition procedure
Oct 21, 2021
Transmittal of decision / summons - opposition
Oct 21, 2021
Transmittal of decision / summons - opposition
Oct 21, 2021
Transmittal of decision / summons - opposition
Oct 21, 2021
Transmittal of decision / summons - opposition
Jun 23, 2021
Information about the result of oral proceedings
May 25, 2021
Brief communication - Opposition proceedings
May 25, 2021
Brief communication - Opposition proceedings
May 25, 2021
Brief communication - Opposition proceedings
May 19, 2021
(Electronic) Receipt
May 19, 2021
Letter accompanying subsequently filed items
May 19, 2021
Withdrawal of a request for oral proceedings
May 10, 2021
Annex to the communication - opposition
May 10, 2021
Notification concerning the date of oral proceedings
May 10, 2021
Notification concerning the date of oral proceedings
May 10, 2021
Notification concerning the date of oral proceedings
May 10, 2021
Notification concerning the date of oral proceedings
May 7, 2021
Brief communication - Opposition proceedings
May 7, 2021
Brief communication - Opposition proceedings
May 7, 2021
Brief communication - Opposition proceedings
May 4, 2021
Brief communication - Opposition proceedings
May 4, 2021
Brief communication - Opposition proceedings
May 4, 2021
Brief communication - Opposition proceedings
Apr 29, 2021
Brief communication - Opposition proceedings
Apr 29, 2021
Brief communication - Opposition proceedings
Apr 29, 2021
Brief communication - Opposition proceedings
Apr 29, 2021
Brief communication - Opposition proceedings
Apr 28, 2021
(Electronic) Receipt
Apr 28, 2021
Any annexes (other than citation) to an opposition letter
Apr 28, 2021
Letter accompanying subsequently filed items
Apr 28, 2021
Written submission in preparation to/during oral proceedings
Apr 23, 2021
(Electronic) Receipt
Apr 23, 2021
Citation in opposition procedure - 001
Apr 23, 2021
Citation in opposition procedure - 026
Apr 23, 2021
Citation in opposition procedure - 027
Apr 23, 2021
Citation in opposition procedure - 028
Apr 23, 2021
Citation in opposition procedure - 029
Apr 23, 2021
Citation in opposition procedure - 030
Apr 23, 2021
Consolidated list of cited opposition documents
Apr 23, 2021
Letter accompanying subsequently filed items
Apr 23, 2021
Written submission in preparation to/during oral proceedings
Apr 22, 2021
(Electronic) Receipt
Apr 22, 2021
(Electronic) Receipt
Apr 22, 2021
Letter accompanying subsequently filed items
Apr 22, 2021
Letter accompanying subsequently filed items
Apr 22, 2021
Written submission in preparation to/during oral proceedings
Apr 22, 2021
Written submission in preparation to/during oral proceedings
Apr 19, 2021
(Electronic) Receipt
Apr 19, 2021
Letter accompanying subsequently filed items
Apr 19, 2021
Request for interpreters during oral proceedings
Jan 26, 2021
Notification concerning the date of oral proceedings
Jan 26, 2021
Notification concerning the date of oral proceedings
Jan 26, 2021
Notification concerning the date of oral proceedings
Jan 26, 2021
Notification concerning the date of oral proceedings
Nov 10, 2020
Advice of delivery
Nov 10, 2020
Communication about missing advice of delivery
Oct 13, 2020
Advice of delivery
Oct 13, 2020
Advice of delivery
Oct 9, 2020
Advice of delivery
Oct 2, 2020
Acknowledgement of a document
Oct 2, 2020
Acknowledgement of a document
Oct 2, 2020
Acknowledgement of a document
Oct 2, 2020
Acknowledgement of a document
Oct 2, 2020
Annex to the communication - opposition
Oct 2, 2020
Brief communication - Opposition proceedings
Oct 2, 2020
Brief communication - Opposition proceedings
Oct 2, 2020
Brief communication - Opposition proceedings
Oct 2, 2020
Information concerning oral proceedings
Oct 2, 2020
Summons to attend oral proceedings
Oct 2, 2020
Summons to attend oral proceedings
Oct 2, 2020
Summons to attend oral proceedings
Oct 2, 2020
Summons to attend oral proceedings
Sep 29, 2020
(Electronic) Receipt
Sep 29, 2020
(Electronic) Receipt
Sep 29, 2020
Auxiliary request during Opposition procedure
Sep 29, 2020
Auxiliary request during Opposition procedure - 01
Sep 29, 2020
Brief communication - Opposition proceedings
Sep 29, 2020
Brief communication - Opposition proceedings
Sep 29, 2020
Brief communication - Opposition proceedings
Sep 29, 2020
Brief communication - Opposition proceedings
Sep 29, 2020
Letter accompanying subsequently filed items
Sep 29, 2020
Letter accompanying subsequently filed items
Sep 29, 2020
Notification concerning the date of oral proceedings
Sep 29, 2020
Notification concerning the date of oral proceedings
Sep 29, 2020
Notification concerning the date of oral proceedings
Sep 29, 2020
Notification concerning the date of oral proceedings
Sep 29, 2020
Written submission in preparation to/during oral proceedings
Sep 29, 2020
Written submission in preparation to/during oral proceedings
Sep 22, 2020
(Electronic) Receipt
Sep 22, 2020
Letter accompanying subsequently filed items
Sep 22, 2020
Written submission in preparation to/during oral proceedings
Sep 16, 2020
(Electronic) Receipt
Sep 16, 2020
Letter accompanying subsequently filed items
Sep 16, 2020
Written submission in preparation to/during oral proceedings
Jul 23, 2020
Notification concerning the date of oral proceedings
Jul 23, 2020
Notification concerning the date of oral proceedings
Jul 23, 2020
Notification concerning the date of oral proceedings
Jul 23, 2020
Notification concerning the date of oral proceedings
Jul 22, 2020
Communication of amended entries
Jul 8, 2020
Request concerning representative opponent
Jun 22, 2020
Advice of delivery
Jun 17, 2020
Advice of delivery
Jun 16, 2020
Advice of delivery
Jun 15, 2020
Advice of delivery
Jun 15, 2020
Advice of delivery
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Annex to the communication - opposition
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Notification concerning the date of oral proceedings
Jun 10, 2020
Notification concerning the date of oral proceedings
Jun 10, 2020
Notification concerning the date of oral proceedings
Jun 10, 2020
Notification concerning the date of oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 5, 2020
Information about the result of oral proceedings
Mar 2, 2020
Brief communication - Opposition proceedings
Mar 2, 2020
Brief communication - Opposition proceedings
Mar 2, 2020
Brief communication - Opposition proceedings
Feb 21, 2020
(Electronic) Receipt
Feb 21, 2020
Letter accompanying subsequently filed items
Feb 21, 2020
Written submission in preparation to/during oral proceedings
Feb 20, 2020
Annex to the communication - opposition
Feb 20, 2020
Notification concerning the date of oral proceedings
Feb 20, 2020
Notification concerning the date of oral proceedings
Feb 20, 2020
Notification concerning the date of oral proceedings
Feb 20, 2020
Notification concerning the date of oral proceedings
Feb 14, 2020
Brief communication - Opposition proceedings
Feb 14, 2020
Brief communication - Opposition proceedings
Feb 14, 2020
Brief communication - Opposition proceedings
Feb 6, 2020
Advice of delivery
Feb 6, 2020
Any annexes (other than citation) to an opposition letter
Feb 6, 2020
Written submission in preparation to/during oral proceedings
Feb 5, 2020
Advice of delivery
Feb 3, 2020
Advice of delivery
Jan 30, 2020
Advice of delivery
Jan 28, 2020
Acknowledgement of a document
Jan 28, 2020
Acknowledgement of a document
Jan 28, 2020
Acknowledgement of a document
Jan 28, 2020
Acknowledgement of a document
Jan 28, 2020
Annex to the communication - opposition
Jan 28, 2020
Information concerning oral proceedings
Jan 28, 2020
Information concerning oral proceedings
Jan 28, 2020
Information concerning oral proceedings
Jan 28, 2020
Information concerning oral proceedings
Jan 28, 2020
Summons to attend oral proceedings
Jan 28, 2020
Summons to attend oral proceedings
Jan 28, 2020
Summons to attend oral proceedings
Jan 28, 2020
Summons to attend oral proceedings
Jan 23, 2020
Information about the result of oral proceedings
Nov 14, 2019
Brief communication - Opposition proceedings
Nov 14, 2019
Brief communication - Opposition proceedings
Nov 14, 2019
Brief communication - Opposition proceedings
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Any annexes (other than citation) to an opposition letter
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Consolidated list of cited opposition documents
Nov 8, 2019
Non-patent literature cited during the opposition procedure
Nov 8, 2019
Reply of the patent proprietor to the notice(s) of opposition
Oct 25, 2019
Request for documents
Oct 23, 2019
Brief communication - Opposition proceedings
Oct 23, 2019
Brief communication - Opposition proceedings
Oct 23, 2019
Brief communication - Opposition proceedings
Aug 8, 2019
Brief communication - Opposition proceedings
Aug 8, 2019
Brief communication - Opposition proceedings
Aug 8, 2019
Brief communication - Opposition proceedings
Jul 30, 2019
(Electronic) Receipt
Jul 30, 2019
(Electronic) Receipt
Jul 30, 2019
Letter accompanying subsequently filed items
Jul 30, 2019
Letter regarding the opposition procedure (no time limit)
Jun 28, 2019
Communication of a notice of opposition and request to file observations
Jun 28, 2019
Notice of further oppositions to opponent(s)
Jun 28, 2019
Notice of further oppositions to opponent(s)
Jun 28, 2019
Notice of further oppositions to opponent(s)
Jun 28, 2019
Request for documents
Jun 11, 2019
Communication of a notice of opposition - first information to patent proprietor
Jun 11, 2019
Communication of a notice of opposition - first information to patent proprietor
Jun 6, 2019
Communication of a notice of opposition - first information to patent proprietor
Jun 5, 2019
(Electronic) Receipt
Jun 5, 2019
Citation in opposition procedure - 006
Jun 5, 2019
Citation in opposition procedure - 015
Jun 5, 2019
Citation in opposition procedure - 024
Jun 5, 2019
Citation in opposition procedure - 025
Jun 5, 2019
Citation in opposition procedure - 026
Jun 5, 2019
Notice of opposition
Jun 5, 2019
Notice of opposition
Jun 3, 2019
(Electronic) Receipt
Jun 3, 2019
Citation in opposition procedure - 002
Jun 3, 2019
Citation in opposition procedure - 004
Jun 3, 2019
Citation in opposition procedure - 007
Jun 3, 2019
Citation in opposition procedure - 008
Jun 3, 2019
Citation in opposition procedure - 009
Jun 3, 2019
Citation in opposition procedure - 010
Jun 3, 2019
Citation in opposition procedure - 011
Jun 3, 2019
Citation in opposition procedure - 012
Jun 3, 2019
Citation in opposition procedure - 013
Jun 3, 2019
Citation in opposition procedure - 014
Jun 3, 2019
Citation in opposition procedure - 015
Jun 3, 2019
Citation in opposition procedure - 016
Jun 3, 2019
Citation in opposition procedure - 017
Jun 3, 2019
Citation in opposition procedure - 018
Jun 3, 2019
Citation in opposition procedure - 019
Jun 3, 2019
Notice of opposition
Jun 3, 2019
Notice of opposition
May 29, 2019
(Electronic) Receipt
May 29, 2019
Any annexes (other than citation) to an opposition letter
May 29, 2019
Citation in opposition procedure - 001
May 29, 2019
Citation in opposition procedure - 002
May 29, 2019
Citation in opposition procedure - 003
May 29, 2019
Citation in opposition procedure - 004
May 29, 2019
Citation in opposition procedure - 005
May 29, 2019
Citation in opposition procedure - 006
May 29, 2019
Notice of opposition
May 29, 2019
Notice of opposition
May 29, 2019
Published international application - A1
Dec 5, 2018
Communication confirming withdrawal from representation
Dec 5, 2018
Communication of amended entries concerning the representative
Nov 23, 2018
Invitation to file an authorisation
Nov 20, 2018
Submission concerning change of applicant's representative
Nov 14, 2018
(Electronic) Receipt
Nov 14, 2018
Letter accompanying subsequently filed items
Nov 14, 2018
Submission concerning change of applicant's representative
Sep 17, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 9, 2018
Decision to grant a European patent
Jul 23, 2018
(Electronic) Receipt
Jul 23, 2018
Filing of the translations of the claims
Jul 23, 2018
French translation of claims
Jul 23, 2018
German translation of the claims
Jul 23, 2018
Letter accompanying subsequently filed items
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
Mar 16, 2018
Bibliographic data of the European patent application
Mar 16, 2018
Communication about intention to grant a European patent
Mar 16, 2018
Intention to grant (signatures)
Mar 16, 2018
Text intended for grant (clean copy)
Mar 16, 2018
Text intended for grant (version for approval)
Jan 5, 2017
(Electronic) Receipt
Jan 5, 2017
Description
Jan 5, 2017
Letter accompanying subsequently filed items
Jan 5, 2017
Reply to communication from the Examining Division
Jan 2, 2017
Annex to the communication
Jan 2, 2017
Communication from the Examining Division
Sep 9, 2016
(Electronic) Receipt
Sep 9, 2016
Claims
Sep 9, 2016
Letter accompanying subsequently filed items
Sep 9, 2016
Reply to communication from the Examining Division
May 24, 2016
Communication of the registration of a transfer or change of name and/or address
May 20, 2016
Annex to the communication
May 20, 2016
Communication from the Examining Division
May 11, 2016
Payment of fees and costs
May 11, 2016
Submission concerning a transfer of rights (applicant)
Jul 10, 2015
Transmittal of third party observations to applicant
Jul 2, 2015
Observations by third parties
Jul 2, 2015
Patent document filed by a Third party
Jul 2, 2015
Patent document filed by a Third party
Jun 30, 2015
Response to enquiry for communication from the Examining Division
Jun 24, 2015
(Electronic) Receipt
Jun 24, 2015
Enquiry as to when a communication from the Examining Division can be expected
Jun 24, 2015
Letter accompanying subsequently filed items
Jun 3, 2015
Notice drawing attention to the payment of the renewal fee and additional fee
Apr 10, 2015
CDS Clean up - amended applicant details
Apr 7, 2015
Submission concerning change of applicant's address
Dec 24, 2013
(Electronic) Receipt
Dec 24, 2013
Amended claims with annotations
Dec 24, 2013
Amended description with annotations
Dec 24, 2013
Claims
Dec 24, 2013
Description
Dec 24, 2013
Letter accompanying subsequently filed items
Dec 24, 2013
Reply to communication from the Examining Division
Aug 29, 2013
Annex to the communication
Aug 29, 2013
Communication from the Examining Division
Aug 23, 2013
Examination started
Apr 16, 2013
Amended claims filed after receipt of (European) search report
Apr 16, 2013
Amendments received before examination
Apr 16, 2013
Cover sheet for fax transmission
Jan 23, 2013
Notification on forthcoming publication of bibliographic data
Nov 23, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 21, 2012
Communication to designated inventor
Nov 21, 2012
Communication to designated inventor
Nov 6, 2012
Notification of the recording of a change
Nov 1, 2012
Copy of the international preliminary report on patentability
Oct 3, 2012
(Electronic) Receipt
Oct 3, 2012
Request for entry into the European phase
Aug 24, 2012
Information on entry into European phase
Nov 9, 2011
Priority document (electronically transmitted)
Oct 20, 2011
Copy of the international search report
Oct 20, 2011
Published international application - A1
Jul 12, 2011
Written opinion of the ISA, boxes No. I to VIII
Jul 12, 2011
Written opinion of the ISA, cover sheet
Jul 12, 2011
Written opinion of the ISA, supplemental box
Apr 18, 2011
Abstract
Apr 18, 2011
Claims
Apr 18, 2011
Description
Apr 18, 2011
Drawings
Apr 18, 2011
Submission concerning representation

EP2558544

EI DU PONT DE NEMOURS

Application Number: EP11715644A
Filing Date: Apr 12, 2011
Status: Patent Maintained As Amended; Aug 2, 2024
Publication Date: Sep 4, 2024
External Links: Slate, Register , Google Patents