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Curable Epoxy Resin Systems Containing Mixtures Of Amine Hardeners And An Excess Of Epoxide Groups

Patent No. EP2726531 (titled "Curable Epoxy Resin Systems Containing Mixtures Of Amine Hardeners And An Excess Of Epoxide Groups") was filed by DOW on Jun 21, 2012. The application was issued on Jul 22, 2015.

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
HEXION RESEARCH BELGIUM	Apr 19, 2016	-

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 8, 2018
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Mar 8, 2018
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Mar 5, 2018
Termination of the opposition proceedings with maintenance of patent
Dec 13, 2017
Confirmation of revocation of automatic debit order
Nov 28, 2017
Advice of delivery
Nov 28, 2017
Advice of delivery
Nov 24, 2017
Advice of delivery
Nov 21, 2017
Acknowledgement of a document
Nov 21, 2017
Acknowledgement of a document
Nov 21, 2017
Decision of the Opposition Division and instruction
Nov 21, 2017
Decision rejecting the opposition
Nov 21, 2017
Grounds for the decision (Annex) - opposition
Nov 21, 2017
Internal form - Opposition/addressees
Sep 26, 2017
Notification concerning the date of oral proceedings
Sep 26, 2017
Notification concerning the date of oral proceedings
Sep 18, 2017
Written submission in preparation to/during oral proceedings
Sep 14, 2017
Written submission in preparation to/during oral proceedings
Apr 18, 2017
Brief communication - Opposition proceedings
Apr 11, 2017
(Electronic) Receipt
Apr 11, 2017
Letter accompanying subsequently filed items
Apr 11, 2017
Written submission in preparation to/during oral proceedings
Jan 9, 2017
Advice of delivery
Dec 20, 2016
Advice of delivery
Dec 15, 2016
Acknowledgement of a document
Dec 15, 2016
Acknowledgement of a document
Dec 15, 2016
Annex to the communication - opposition
Dec 15, 2016
Information concerning oral proceedings
Dec 15, 2016
Preparation for oral proceedings
Dec 15, 2016
Summons to attend oral proceedings
Dec 15, 2016
Summons to attend oral proceedings
Dec 8, 2016
Information about the result of oral proceedings
Oct 14, 2016
Brief communication - Opposition proceedings
Oct 10, 2016
(Electronic) Receipt
Oct 10, 2016
Any annexes (other than citation) to an opposition letter
Oct 10, 2016
Letter accompanying subsequently filed items
Oct 10, 2016
Patent document cited during the opposition procedure
Oct 10, 2016
Patent document cited during the opposition procedure
Oct 10, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jun 1, 2016
Communication of a notice of opposition and request to file observations
Jun 1, 2016
Notice of further oppositions to opponent(s)
Apr 28, 2016
Communication of a notice of opposition - first information to patent proprietor
Apr 19, 2016
Non-patent literature cited during the opposition procedure
Apr 19, 2016
Non-patent literature cited during the opposition procedure
Apr 19, 2016
Non-patent literature cited during the opposition procedure
Apr 19, 2016
Notice of opposition
Apr 19, 2016
Notice of opposition
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Patent document cited during the opposition procedure
Apr 19, 2016
Payment of fees and costs
Jul 23, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 25, 2015
Decision to grant a European patent
May 8, 2015
(Electronic) Receipt
May 8, 2015
Filing of the translations of the claims
May 8, 2015
French translation of claims
May 8, 2015
German translation of the claims
May 8, 2015
Letter accompanying subsequently filed items
Apr 13, 2015
Bibliographic data of the European patent application
Apr 13, 2015
Communication about intention to grant a European patent
Apr 13, 2015
Intention to grant (signatures)
Apr 13, 2015
Text intended for grant
Mar 27, 2015
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Mar 12, 2015
(Electronic) Receipt
Mar 12, 2015
Amended claims with annotations
Mar 12, 2015
Claims
Mar 12, 2015
Letter accompanying subsequently filed items
Mar 12, 2015
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Nov 3, 2014
Bibliographic data of the European patent application
Nov 3, 2014
Communication about intention to grant a European patent
Nov 3, 2014
Intention to grant (signatures)
Nov 3, 2014
Text intended for grant
Oct 9, 2014
Examination started
Apr 9, 2014
Notification on forthcoming publication of bibliographic data
Mar 17, 2014
Communication of amended entries concerning the representative
Mar 7, 2014
Submission concerning change of applicant's representative
Feb 12, 2014
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Feb 10, 2014
Communication to designated inventor
Feb 10, 2014
Communication to designated inventor
Feb 10, 2014
Communication to designated inventor
Feb 10, 2014
Communication to designated inventor
Feb 10, 2014
Communication to designated inventor
Feb 10, 2014
Communication to designated inventor
Jan 21, 2014
Copy of the international preliminary report on patentability
Nov 13, 2013
(Electronic) Receipt
Nov 13, 2013
Request for entry into the European phase
Nov 8, 2013
Information on entry into European phase
Apr 10, 2013
Notification of the recording of a change
Jan 23, 2013
Priority document (electronically transmitted)
Jan 3, 2013
Copy of the international search report
Jan 3, 2013
Published international application - A1
Oct 1, 2012
Written opinion of the ISA, boxes No. I to VIII
Oct 1, 2012
Written opinion of the ISA, cover sheet
Oct 1, 2012
Written opinion of the ISA, supplemental box
Jul 5, 2012
Abstract
Jul 5, 2012
Claims
Jul 5, 2012
Description

EP2726531

DOW

Application Number: EP12731875A
Filing Date: Jun 21, 2012
Status: Opposition Rejected; Mar 9, 2018
Publication Date: Jul 22, 2015
External Links: Slate, Register , Google Patents