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Terephthalate Stabilizers For Fluoroolefins

Patent No. EP2420546 (titled "Terephthalate Stabilizers For Fluoroolefins") was filed by E I DU Pont DE Nemours on Aug 31, 2007. The application was issued on Apr 8, 2020.

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	Jan 26, 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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Mar 12, 2020
Decision to maintain the European patent in amended form
Mar 12, 2020
Decision to maintain the European patent in amended form
Mar 6, 2020
Termination of the opposition proceedings with maintenance of patent
Feb 28, 2020
(Electronic) Receipt
Feb 28, 2020
Filing of the translation of the amended claims
Feb 28, 2020
French translation of claims
Feb 28, 2020
German translation of the claims
Feb 28, 2020
Letter accompanying subsequently filed items
Nov 26, 2019
Communication to opponent concerning maintenance
Nov 26, 2019
Communication with request to file translations
Nov 14, 2019
Maintenance of the patent with the documents specified in the final decision
Nov 12, 2019
Refund of fees
Nov 11, 2019
Maintenance of the patent with the documents specified in the final decision
Nov 6, 2019
Refund of fees
Nov 5, 2019
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Oct 25, 2019
Composition of the board (T)
Oct 24, 2019
F3345 Forwarding of submissions to parties
Oct 22, 2019
(Electronic) Receipt
Oct 22, 2019
Letter accompanying subsequently filed items
Oct 22, 2019
Withdrawal of an appeal
Oct 21, 2019
(Electronic) Receipt
Oct 21, 2019
Letter accompanying subsequently filed items
Oct 21, 2019
Withdrawal of an appeal
Aug 21, 2019
F3204 Communication of the file number to the parties
Aug 14, 2019
(Electronic) Receipt
Aug 14, 2019
Letter accompanying subsequently filed items
Aug 14, 2019
Notice of appeal
Aug 9, 2019
F3204 Communication of the file number to the parties
Jul 31, 2019
Processing of an appeal
Jul 29, 2019
(Electronic) Receipt
Jul 29, 2019
Letter accompanying subsequently filed items
Jul 29, 2019
Notice of appeal
Jul 22, 2019
Advice of delivery
Jun 24, 2019
(Electronic) Receipt
Jun 24, 2019
Acknowledgement of a document
Jun 24, 2019
Letter accompanying subsequently filed items
Jun 19, 2019
Advice of delivery
Jun 12, 2019
Acknowledgement of a document
Jun 12, 2019
Acknowledgement of a document
Jun 12, 2019
Druckexemplar in opposition procedure
Jun 12, 2019
Grounds for the decision (Annex) - opposition
Jun 12, 2019
Interlocutory decision in opposition proceedings
Jun 12, 2019
Internal form - Opposition/addressees
Jun 12, 2019
Means of redress
Apr 15, 2019
Brief communication - Opposition proceedings
Apr 9, 2019
(Electronic) Receipt
Apr 9, 2019
Description
Apr 9, 2019
Letter accompanying subsequently filed items
Apr 9, 2019
Reply to an examination report in opposition proceedings
Apr 2, 2019
Annex to the communication - opposition
Apr 2, 2019
Communication inviting the parties to file observations
Apr 2, 2019
Internal form - Opposition/addressees
Mar 20, 2019
Notification concerning the date of oral proceedings
Mar 20, 2019
Notification concerning the date of oral proceedings
Mar 11, 2019
Brief communication - Opposition proceedings
Mar 7, 2019
Brief communication - Opposition proceedings
Mar 7, 2019
Brief communication - Opposition proceedings
Mar 6, 2019
(Electronic) Receipt
Mar 6, 2019
Claims
Mar 6, 2019
Description
Mar 6, 2019
Description
Mar 6, 2019
Letter accompanying subsequently filed items
Mar 6, 2019
Written submission in preparation to/during oral proceedings
Feb 27, 2019
(Electronic) Receipt
Feb 27, 2019
Letter accompanying subsequently filed items
Feb 27, 2019
Written submission in preparation to/during oral proceedings
Feb 22, 2019
(Electronic) Receipt
Feb 22, 2019
Letter accompanying subsequently filed items
Feb 22, 2019
Withdrawal of a request for oral proceedings
Jan 11, 2019
Advice of delivery
Oct 4, 2018
(Electronic) Receipt
Oct 4, 2018
Acknowledgement of a document
Oct 4, 2018
Letter accompanying subsequently filed items
Sep 21, 2018
Advice of delivery
Sep 17, 2018
Acknowledgement of a document
Sep 17, 2018
Acknowledgement of a document
Sep 17, 2018
Annex to the communication - opposition
Sep 17, 2018
Information concerning oral proceedings
Sep 17, 2018
Information concerning oral proceedings
Sep 17, 2018
Preparation for oral proceedings
Sep 17, 2018
Summons to attend oral proceedings
Sep 17, 2018
Summons to attend oral proceedings
Jun 22, 2018
Brief communication - Opposition proceedings
Jun 19, 2018
(Electronic) Receipt
Jun 19, 2018
Auxiliary request during Opposition procedure
Jun 19, 2018
Auxiliary request during Opposition procedure
Jun 19, 2018
Auxiliary request during Opposition procedure
Jun 19, 2018
Letter regarding the opposition procedure (no time limit)
Jun 19, 2018
Reply of the patent proprietor to the notice(s) of opposition
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
Feb 9, 2018
Communication of a notice of opposition and request to file observations
Feb 9, 2018
Notice of further oppositions to opponent(s)
Feb 5, 2018
Communication of a notice of opposition - first information to patent proprietor
Jan 26, 2018
(Electronic) Receipt
Jan 26, 2018
Notice of opposition
Jan 26, 2018
Notice of opposition
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Jan 26, 2018
Patent document cited during the opposition procedure
Apr 26, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 30, 2017
Decision to grant a European patent
Mar 28, 2017
Bibliographic data of the European patent application
Mar 28, 2017
Brief communication to applicant/representative (Legal Division)
Mar 16, 2017
(Electronic) Receipt
Mar 16, 2017
Filing of the translations of the claims
Mar 16, 2017
French translation of claims
Mar 16, 2017
German translation of the claims
Mar 16, 2017
Letter accompanying subsequently filed items
Dec 21, 2016
Bibliographic data of the European patent application
Dec 21, 2016
Communication about intention to grant a European patent
Dec 21, 2016
Intention to grant (signatures)
Dec 21, 2016
Text intended for grant (clean copy)
Dec 21, 2016
Text intended for grant (version for approval)
Dec 5, 2016
Examination started
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 (applicant)
Apr 10, 2015
CDS Clean up - amended applicant details
Apr 7, 2015
Submission concerning change of applicant's address
Jan 19, 2015
(Electronic) Receipt
Jan 19, 2015
Amended description filed after receipt of (European) search report
Jan 19, 2015
Amended description with annotations
Jan 19, 2015
Amendments received before examination
Jan 19, 2015
Letter accompanying subsequently filed items
Oct 29, 2014
(Electronic) Receipt
Oct 29, 2014
Amended claims filed after receipt of (European) search report
Oct 29, 2014
Amendments received before examination
Oct 29, 2014
Letter accompanying subsequently filed items
Jul 30, 2014
Refund of fees
May 12, 2014
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Apr 3, 2014
Communication regarding the transmission of the European search report
Apr 3, 2014
European search opinion
Apr 3, 2014
European search report
Mar 17, 2014
Search started
Jul 11, 2013
CDS Clean up - amended data concerning the representative for the applicant
Mar 15, 2012
Letter concerning the inventor
Feb 22, 2012
Invitation to indicate correct address of inventor
Feb 14, 2012
Letter which had not been notified
Jan 25, 2012
Notification of forthcoming publication
Nov 18, 2011
Abstract
Nov 18, 2011
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Nov 18, 2011
Claims
Nov 18, 2011
Description
Nov 18, 2011
Designation of inventor
Nov 18, 2011
Designation of inventor
Nov 18, 2011
Designation of inventor
Nov 18, 2011
Designation of inventor
Nov 18, 2011
Designation of inventor
Nov 18, 2011
Request for grant of a European patent
Mar 31, 2008
Priority document (electronically transmitted)
Mar 31, 2008
Priority document (electronically transmitted)
Mar 31, 2008
Priority document (electronically transmitted)
Mar 31, 2008
Priority document (electronically transmitted)

EP2420546

E I DU PONT DE NEMOURS

Application Number: EP11189771A
Filing Date: Aug 31, 2007
Status: Patent Maintained As Amended; Mar 6, 2020
Publication Date: Apr 8, 2020
External Links: Slate, EP2420546B2, Google Patents

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Terephthalate Stabilizers For Fluoroolefins

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2420546