IP Verse

Composition Comprising Cis-1,1,1,4,4,4-Hexafluoro-2-Butene And Trans-1,2-Dichloroethylene, Apparatus Containing Same And Methods Of Producing Cooling Therein

Patent No. EP2521757 (titled "Composition Comprising Cis-1,1,1,4,4,4-Hexafluoro-2-Butene And Trans-1,2-Dichloroethylene, Apparatus Containing Same And Methods Of Producing Cooling Therein") was filed by E I DU Pont DE Nemours on Sep 15, 2010. The application was issued on May 4, 2016.

Patent Summary

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Patent Oppositions

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
ARKEMA FRANCE	Feb 3, 2017	CHAHINE

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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May 3, 2019
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
May 3, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Apr 29, 2019
Termination of the opposition proceedings with maintenance of patent
Jan 29, 2019
Advice of delivery
Jan 29, 2019
Advice of delivery
Jan 23, 2019
Advice of delivery
Jan 18, 2019
Acknowledgement of a document
Jan 18, 2019
Acknowledgement of a document
Jan 18, 2019
Decision of the Opposition Division and instruction
Jan 18, 2019
Decision rejecting the opposition
Jan 18, 2019
Grounds for the decision (Annex) - opposition
Jan 18, 2019
Internal form - Opposition/addressees
Jan 18, 2019
Means of redress
Nov 30, 2018
Notification concerning the date of oral proceedings
Nov 30, 2018
Notification concerning the date of oral proceedings
Nov 23, 2018
Brief communication - Opposition proceedings
Nov 9, 2018
(Electronic) Receipt
Nov 9, 2018
Written submission in preparation to/during oral proceedings
Nov 9, 2018
Written submission in preparation to/during oral proceedings
Oct 30, 2018
Brief communication - Opposition proceedings
Oct 18, 2018
Brief communication - Opposition proceedings
Oct 16, 2018
Brief communication - Opposition proceedings
Oct 12, 2018
(Electronic) Receipt
Oct 12, 2018
Citation in opposition procedure
Oct 12, 2018
Citation in opposition procedure
Oct 12, 2018
Claims
Oct 12, 2018
Claims
Oct 12, 2018
Claims
Oct 12, 2018
Claims
Oct 12, 2018
Claims
Oct 12, 2018
Letter accompanying subsequently filed items
Oct 12, 2018
Written submission in preparation to/during oral proceedings
Oct 5, 2018
(Electronic) Receipt
Oct 5, 2018
Request for interpreters during oral proceedings
Oct 5, 2018
Written submission in preparation to/during oral proceedings
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
May 1, 2018
Advice of delivery
Apr 25, 2018
(Electronic) Receipt
Apr 25, 2018
Advice of delivery
Apr 25, 2018
Letter accompanying subsequently filed items
Apr 19, 2018
Advice of delivery
Apr 16, 2018
Acknowledgement of a document
Apr 16, 2018
Acknowledgement of a document
Apr 16, 2018
Annex to the communication - opposition
Apr 16, 2018
Information concerning oral proceedings
Apr 16, 2018
Preparation for oral proceedings
Apr 16, 2018
Summons to attend oral proceedings
Apr 16, 2018
Summons to attend oral proceedings
Jul 28, 2017
Brief communication - Opposition proceedings
Jul 24, 2017
(Electronic) Receipt
Jul 24, 2017
Letter regarding the opposition procedure (no time limit)
Jul 24, 2017
Reply of the patent proprietor to the notice(s) of opposition
Mar 16, 2017
Communication of a notice of opposition and request to file observations
Mar 16, 2017
Notice of further oppositions to opponent(s)
Feb 9, 2017
Communication of a notice of opposition - first information to patent proprietor
Feb 3, 2017
(Electronic) Receipt
Feb 3, 2017
Non-patent literature cited during the opposition procedure
Feb 3, 2017
Non-patent literature cited during the opposition procedure
Feb 3, 2017
Non-patent literature cited during the opposition procedure
Feb 3, 2017
Non-patent literature cited during the opposition procedure
Feb 3, 2017
Non-patent literature cited during the opposition procedure
Feb 3, 2017
Notice of opposition
Feb 3, 2017
Notice of opposition
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
Feb 3, 2017
Patent document cited during the opposition procedure
May 24, 2016
Communication of the registration of a transfer or change of name and/or address
May 11, 2016
Payment of fees and costs
May 11, 2016
Submission concerning a transfer of rights (proprietor)
May 4, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 7, 2016
Decision to grant a European patent
Mar 14, 2016
(Electronic) Receipt
Mar 14, 2016
Filing of the translations of the claims
Mar 14, 2016
French translation of claims
Mar 14, 2016
German translation of the claims
Mar 14, 2016
Letter accompanying subsequently filed items
Jan 19, 2016
Brief communication to applicant/representative (Legal Division)
Jan 18, 2016
Communication to designated inventor
Jan 12, 2016
Bibliographic data of the European patent application
Dec 30, 2015
(Electronic) Receipt
Dec 30, 2015
Letter accompanying subsequently filed items
Dec 30, 2015
Letter concerning the inventor
Dec 30, 2015
Letter concerning the inventor
Dec 1, 2015
Bibliographic data of the European patent application
Dec 1, 2015
Communication about intention to grant a European patent
Dec 1, 2015
Intention to grant (signatures)
Dec 1, 2015
Text intended for grant
Apr 7, 2015
Submission concerning change of applicant's address
Dec 19, 2014
Response to enquiry for communication from the Examining Division
Dec 11, 2014
General enquiry
Jul 11, 2013
CDS Clean up - amended data concerning the representative for the applicant
Jun 11, 2013
(Electronic) Receipt
Jun 11, 2013
Description
Jun 11, 2013
Letter accompanying subsequently filed items
Jun 11, 2013
Reply to communication from the Examining Division
May 16, 2013
Annex to the communication
May 16, 2013
Communication from the Examining Division
Jan 7, 2013
Amended claims filed after receipt of (European) search report
Jan 7, 2013
Amended claims with annotations
Jan 7, 2013
Amendments received before examination
Jan 7, 2013
Cover sheet for fax transmission
Oct 17, 2012
Notification on forthcoming publication of bibliographic data
Oct 17, 2012
Request for further processing allowed
Jun 26, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jun 7, 2012
Letter concerning fees and payments
Jun 7, 2012
Payment of fees and costs
May 24, 2012
Application deemed to be withdrawn (non-entry into European phase)
Apr 13, 2012
Copy of the international preliminary report on patentability
Mar 19, 2012
(Electronic) Receipt
Mar 19, 2012
Request for entry into the European phase
Mar 8, 2012
Notification of the recording of a change
Jan 27, 2012
Information on entry into European phase
Apr 12, 2011
Priority document (electronically transmitted)
Mar 24, 2011
Copy of the international search report
Mar 24, 2011
Published international application - A1
Dec 7, 2010
Written opinion of the ISA, boxes No. I to VIII
Dec 7, 2010
Written opinion of the ISA, cover sheet
Dec 7, 2010
Written opinion of the ISA, supplemental box
Sep 23, 2010
Abstract
Sep 23, 2010
Claims
Sep 23, 2010
Description
Sep 23, 2010
Drawings
Sep 23, 2010
Submission concerning representation

EP2521757

E I DU PONT DE NEMOURS

Application Number: EP10755302A
Filing Date: Sep 15, 2010
Status: Opposition Rejected; May 3, 2019
Publication Date: May 4, 2016
External Links: Slate, Register , Google Patents