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Synthesis Of 1234Yf By Selective Dehydrochlorination Of 244Bb

Patent No. EP2590915 (titled "Synthesis Of 1234Yf By Selective Dehydrochlorination Of 244Bb") was filed by EI DU Pont DE Nemours on Jul 6, 2011. The application was issued on Sep 6, 2017.

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	Jun 5, 2018	LECA

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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Nov 15, 2019
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Nov 15, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Nov 12, 2019
Termination of the opposition proceedings with maintenance of patent
Aug 26, 2019
Advice of delivery
Aug 14, 2019
Advice of delivery
Aug 8, 2019
Advice of delivery
Aug 1, 2019
Acknowledgement of a document
Aug 1, 2019
Acknowledgement of a document
Aug 1, 2019
Annex to the communication - opposition
Aug 1, 2019
Decision of the Opposition Division and instruction
Aug 1, 2019
Decision rejecting the opposition
Aug 1, 2019
Grounds for the decision (Annex) - opposition
Aug 1, 2019
Internal form - Opposition/addressees
Aug 1, 2019
Internal form - Opposition/addressees
Aug 1, 2019
Means of redress
Aug 1, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 1, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 1, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Aug 1, 2019
Provision of a copy of the minutes - opposition procedure
Jul 19, 2019
Information about the result of oral proceedings
Jul 10, 2019
Notification concerning the date of oral proceedings
Jul 10, 2019
Notification concerning the date of oral proceedings
Jul 5, 2019
Brief communication - Opposition proceedings
Jul 2, 2019
(Electronic) Receipt
Jul 2, 2019
Letter accompanying subsequently filed items
Jul 2, 2019
Written submission in preparation to/during oral proceedings
May 24, 2019
Miscellaneous requests concerning client data
May 22, 2019
Brief communication - Opposition proceedings
May 17, 2019
(Electronic) Receipt
May 17, 2019
Amended claims with annotations
May 17, 2019
Amended claims with annotations
May 17, 2019
Amended claims with annotations
May 17, 2019
Amended claims with annotations
May 17, 2019
Amended claims with annotations
May 17, 2019
Amended claims with annotations
May 17, 2019
Claims
May 17, 2019
Claims
May 17, 2019
Claims
May 17, 2019
Claims
May 17, 2019
Claims
May 17, 2019
Claims
May 17, 2019
Request for interpreters during oral proceedings
May 17, 2019
Written submission in preparation to/during oral proceedings
May 16, 2019
Brief communication - Opposition proceedings
May 13, 2019
(Electronic) Receipt
May 13, 2019
Letter accompanying subsequently filed items
May 13, 2019
Request for interpreters during oral proceedings
May 8, 2019
Brief communication - Opposition proceedings
May 8, 2019
Communication confirming withdrawal from representation
May 8, 2019
Communication of amended entries concerning the representative
May 3, 2019
(Electronic) Receipt
May 3, 2019
Letter accompanying subsequently filed items
May 3, 2019
Submission concerning change of proprietor's representative
Mar 6, 2019
(Electronic) Receipt
Mar 6, 2019
Acknowledgement of a document
Mar 6, 2019
Letter accompanying subsequently filed items
Feb 27, 2019
Communication about missing advice of delivery
Feb 4, 2019
Advice of delivery
Jan 28, 2019
Advice of delivery
Jan 22, 2019
Acknowledgement of a document
Jan 22, 2019
Acknowledgement of a document
Jan 22, 2019
Information concerning oral proceedings
Jan 22, 2019
Summons to attend oral proceedings
Jan 22, 2019
Summons to attend oral proceedings
Jan 16, 2019
Brief communication - Opposition proceedings
Jan 9, 2019
(Electronic) Receipt
Jan 9, 2019
Any annexes (other than citation) to an opposition letter
Jan 9, 2019
Letter accompanying subsequently filed items
Jan 9, 2019
Oral proceedings: Request for postponement
Dec 24, 2018
(Electronic) Receipt
Dec 24, 2018
Advice of delivery
Dec 24, 2018
Letter accompanying subsequently filed items
Dec 19, 2018
Advice of delivery
Dec 19, 2018
Advice of delivery
Dec 11, 2018
Acknowledgement of a document
Dec 11, 2018
Acknowledgement of a document
Dec 11, 2018
Annex to the communication - opposition
Dec 11, 2018
Information concerning oral proceedings
Dec 11, 2018
Summons to attend oral proceedings
Dec 11, 2018
Summons to attend oral proceedings
Nov 7, 2018
Brief communication - Opposition proceedings
Oct 30, 2018
(Electronic) Receipt
Oct 30, 2018
Citation in opposition procedure - 005
Oct 30, 2018
Letter regarding the opposition procedure (no time limit)
Oct 30, 2018
Patent document cited during the opposition procedure
Oct 30, 2018
Reply of the patent proprietor to the notice(s) of opposition
Jun 20, 2018
Communication of a notice of opposition and request to file observations
Jun 20, 2018
Notice of further oppositions to opponent(s)
Jun 12, 2018
Communication of a notice of opposition - first information to patent proprietor
Jun 5, 2018
(Electronic) Receipt
Jun 5, 2018
Notice of opposition
Jun 5, 2018
Notice of opposition
May 28, 2018
Communication of amended entries concerning the representative
Sep 7, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 10, 2017
Decision to grant a European patent
Aug 9, 2017
Refund of fees
Jul 18, 2017
(Electronic) Receipt
Jul 18, 2017
Filing of the translations of the claims
Jul 18, 2017
French translation of claims
Jul 18, 2017
German translation of the claims
Jul 18, 2017
Letter accompanying subsequently filed items
Mar 9, 2017
Bibliographic data of the European patent application
Mar 9, 2017
Communication about intention to grant a European patent
Mar 9, 2017
Intention to grant (signatures)
Mar 9, 2017
Text intended for grant (clean copy)
Mar 9, 2017
Text intended for grant (version for approval)
Feb 27, 2017
Annex to the communication
Feb 27, 2017
Consultation by telephone/in person
Feb 27, 2017
Result of consultation by telephone/in person
May 24, 2016
Communication of the registration of a transfer or change of name and/or address
May 23, 2016
(Electronic) Receipt
May 23, 2016
Amended claims with annotations
May 23, 2016
Amended description with annotations
May 23, 2016
Claims
May 23, 2016
Description
May 23, 2016
Letter accompanying subsequently filed items
May 23, 2016
Reply to communication from the Examining Division
May 11, 2016
Payment of fees and costs
May 11, 2016
Submission concerning a transfer of rights (applicant)
Mar 24, 2016
Grant of extension of time limit (examination procedure)
Mar 18, 2016
(Electronic) Receipt
Mar 18, 2016
Letter accompanying subsequently filed items
Mar 18, 2016
Request for extension of time limit to communication from the Examining Division
Nov 11, 2015
Annex to the communication
Nov 11, 2015
Communication from the Examining Division
Apr 10, 2015
CDS Clean up - amended applicant details
Apr 7, 2015
Submission concerning change of applicant's address
Jun 16, 2014
(Electronic) Receipt
Jun 16, 2014
Letter accompanying subsequently filed items
Jun 16, 2014
Reply to communication from the Examining Division
Apr 23, 2014
Grant of extension of time limit (examination procedure)
Apr 15, 2014
(Electronic) Receipt
Apr 15, 2014
Request for extension of time limit to communication from the Examining Division
Dec 6, 2013
Annex to the communication
Dec 6, 2013
Communication from the Examining Division
Sep 16, 2013
(Electronic) Receipt
Sep 16, 2013
Amended claims filed after receipt of (European) search report
Sep 16, 2013
Amended claims with annotations
Sep 16, 2013
Amended description filed after receipt of (European) search report
Sep 16, 2013
Amended description with annotations
Sep 16, 2013
Amendments received before examination
Sep 16, 2013
Letter accompanying subsequently filed items
Apr 17, 2013
Notification on forthcoming publication of bibliographic data
Mar 6, 2013
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Feb 11, 2013
Communication to designated inventor
Feb 11, 2013
Communication to designated inventor
Feb 11, 2013
Communication to designated inventor
Jan 23, 2013
Copy of the international preliminary report on patentability
Dec 21, 2012
(Electronic) Receipt
Dec 21, 2012
Request for entry into the European phase
Nov 16, 2012
Information on entry into European phase
Feb 2, 2012
Priority document (electronically transmitted)
Jan 12, 2012
Copy of the international search report
Jan 12, 2012
Published international application - A1
Oct 31, 2011
Written opinion of the ISA, boxes No. I to VIII
Oct 31, 2011
Written opinion of the ISA, cover sheet
Oct 31, 2011
Written opinion of the ISA, supplemental box
Jul 13, 2011
Abstract
Jul 13, 2011
Claims
Jul 13, 2011
Description
Jul 13, 2011
Submission concerning representation

EP2590915

EI DU PONT DE NEMOURS

Application Number: EP11738880A
Filing Date: Jul 6, 2011
Status: Opposition Rejected; Nov 15, 2019
Publication Date: Sep 6, 2017
External Links: Slate, EP2590915B1, Google Patents

IP Verse

Synthesis Of 1234Yf By Selective Dehydrochlorination Of 244Bb

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2590915