IP Verse

Azeotropic And Azeotrope-Like Compositions Of 2,3,3,4,4,4-Hexafluoro-1-Butene And 1,1,1,2,3,3-Hexafluoropropane And Uses Thereof

Patent No. EP2885345 (titled "Azeotropic And Azeotrope-Like Compositions Of 2,3,3,4,4,4-Hexafluoro-1-Butene And 1,1,1,2,3,3-Hexafluoropropane And Uses Thereof") was filed by E I DU Pont DE Nemours on Aug 15, 2013. The application was issued on Aug 10, 2016.

Patent Summary

Patent Family

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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 24, 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

Oct 11, 2019
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Oct 11, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Oct 8, 2019
Termination of the opposition proceedings with maintenance of patent
Jul 9, 2019
Advice of delivery
Jul 5, 2019
Advice of delivery
Jul 4, 2019
(Electronic) Receipt
Jul 4, 2019
Acknowledgement of a document
Jul 4, 2019
Letter accompanying subsequently filed items
Jun 27, 2019
Acknowledgement of a document
Jun 27, 2019
Acknowledgement of a document
Jun 27, 2019
Decision rejecting the opposition
Jun 27, 2019
Grounds for the decision (Annex) - opposition
Jun 27, 2019
Internal form - Opposition/addressees
Jun 27, 2019
Means of redress
May 15, 2019
Notification concerning the date of oral proceedings
May 15, 2019
Notification concerning the date of oral proceedings
May 13, 2019
Advice of delivery
May 10, 2019
Advice of delivery
May 10, 2019
Advice of delivery
May 2, 2019
Brief communication - Opposition proceedings
Apr 25, 2019
(Electronic) Receipt
Apr 25, 2019
Letter accompanying subsequently filed items
Apr 25, 2019
Written submission in preparation to/during oral proceedings
Feb 11, 2019
Advice of delivery
Feb 4, 2019
Brief communication - Opposition proceedings
Feb 4, 2019
Brief communication - Opposition proceedings
Jan 24, 2019
Brief communication - Opposition proceedings
Dec 28, 2018
(Electronic) Receipt
Dec 28, 2018
Letter accompanying subsequently filed items
Dec 28, 2018
Written submission in preparation to/during oral proceedings
Dec 18, 2018
Brief communication - Opposition proceedings
Dec 12, 2018
(Electronic) Receipt
Dec 12, 2018
Letter accompanying subsequently filed items
Dec 12, 2018
Letter regarding the opposition procedure (no time limit)
Oct 12, 2018
Communication: patent lapsed
Oct 12, 2018
Communication: patent lapsed
Jun 19, 2018
Advice of delivery
Jun 12, 2018
(Electronic) Receipt
Jun 12, 2018
Advice of delivery
Jun 12, 2018
Letter accompanying subsequently filed items
Jun 7, 2018
Acknowledgement of a document
Jun 7, 2018
Acknowledgement of a document
Jun 7, 2018
Annex to the communication - opposition
Jun 7, 2018
Information concerning oral proceedings
Jun 7, 2018
Preparation for oral proceedings
Jun 7, 2018
Summons to attend oral proceedings
Jun 7, 2018
Summons to attend oral proceedings
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
Jul 28, 2017
Brief communication - Opposition proceedings
Jul 24, 2017
(Electronic) Receipt
Jul 24, 2017
Letter accompanying subsequently filed items
Jul 24, 2017
Reply of the patent proprietor to the notice(s) of opposition
Apr 5, 2017
Communication of a notice of opposition and request to file observations
Apr 5, 2017
Notice of further oppositions to opponent(s)
Mar 7, 2017
Communication of a notice of opposition - first information to patent proprietor
Feb 24, 2017
(Electronic) Receipt
Feb 24, 2017
Notice of opposition
Feb 24, 2017
Notice of opposition
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
Feb 24, 2017
Patent document cited during the opposition procedure
May 25, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
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 29, 2016
Decision to grant a European patent
Apr 6, 2016
(Electronic) Receipt
Apr 6, 2016
Filing of the translations of the claims
Apr 6, 2016
French translation of claims
Apr 6, 2016
German translation of the claims
Apr 6, 2016
Letter accompanying subsequently filed items
Mar 22, 2016
(Electronic) Receipt
Mar 22, 2016
Letter accompanying subsequently filed items
Dec 22, 2015
Bibliographic data of the European patent application
Dec 22, 2015
Communication about intention to grant a European patent
Dec 22, 2015
Intention to grant (signatures)
Dec 22, 2015
Text intended for grant
Nov 27, 2015
Annex to the communication
Nov 27, 2015
Consultation by telephone/in person
Nov 27, 2015
Result of consultation by telephone/in person
Nov 20, 2015
(Electronic) Receipt
Nov 20, 2015
Claims
Nov 20, 2015
Letter accompanying subsequently filed items
Nov 20, 2015
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Nov 17, 2015
Examination started
Sep 7, 2015
(Electronic) Receipt
Sep 7, 2015
Letter accompanying subsequently filed items
Sep 7, 2015
Reply to Written Opinion prepared by the EPO
May 28, 2015
Notification on forthcoming publication of bibliographic data
Apr 10, 2015
CDS Clean up - amended applicant details
Apr 7, 2015
Submission concerning change of applicant's address
Mar 24, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Mar 20, 2015
Communication to designated inventor
Mar 20, 2015
Communication to designated inventor
Mar 5, 2015
Copy of the international preliminary report on patentability
Feb 4, 2015
(Electronic) Receipt
Feb 4, 2015
Request for entry into the European phase
Jan 5, 2015
Information on entry into European phase
Mar 18, 2014
Priority document (electronically transmitted)
Mar 18, 2014
Priority document (electronically transmitted)
Feb 20, 2014
Copy of the international search report
Feb 20, 2014
Published international application - A1
Sep 27, 2013
Written opinion of the ISA, boxes No. I to VIII
Sep 27, 2013
Written opinion of the ISA, cover sheet
Sep 27, 2013
Written opinion of the ISA, supplemental box
Aug 26, 2013
Abstract
Aug 26, 2013
Claims
Aug 26, 2013
Description
Aug 26, 2013
Drawings
Aug 26, 2013
Submission concerning representation

EP2885345

E I DU PONT DE NEMOURS

Application Number: EP13753385A
Filing Date: Aug 15, 2013
Status: Opposition Rejected; Oct 11, 2019
Publication Date: Aug 10, 2016
External Links: Slate, Register , Google Patents