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Improved Process For The Production Of Low Molecular Weight Impact Polyethers

Patent No. EP2888310 (titled "Improved Process For The Production Of Low Molecular Weight Impact Polyethers") was filed by Bayer Materialscience on Jul 18, 2013. The application was issued on Aug 23, 2017.

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
THE DOW CHEMICAL	May 22, 2018	BECK GREENER

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
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Jul 19, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 19, 2019
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jul 16, 2019
Termination of the opposition proceedings with revocation of patent
May 7, 2019
Advice of delivery
Apr 11, 2019
Advice of delivery
Apr 10, 2019
Brief communication - Opposition proceedings
Apr 10, 2019
Communication of amended entries
Apr 8, 2019
Advice of delivery
Apr 5, 2019
Acknowledgement of a document
Apr 5, 2019
Acknowledgement of a document
Apr 5, 2019
Decision of the Opposition Division and instruction
Apr 5, 2019
Decision revoking the European patent
Apr 5, 2019
Grounds for the decision (Annex) - opposition
Apr 5, 2019
Internal form - Opposition/addressees
Mar 28, 2019
Request concerning representative opponent
Jun 7, 2018
Communication of a notice of opposition and request to file observations
Jun 7, 2018
Notice of further oppositions to opponent(s)
May 25, 2018
Communication of a notice of opposition - first information to patent proprietor
May 22, 2018
(Electronic) Receipt
May 22, 2018
Non-patent literature cited during the opposition procedure
May 22, 2018
Notice of opposition
May 22, 2018
Notice of opposition
May 22, 2018
Patent document cited during the opposition procedure
May 22, 2018
Patent document cited during the opposition procedure
May 22, 2018
Patent document cited during the opposition procedure
May 22, 2018
Patent document cited during the opposition procedure
May 22, 2018
Patent document cited during the opposition procedure
Aug 24, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 27, 2017
Decision to grant a European patent
Jun 22, 2017
(Electronic) Receipt
Jun 22, 2017
Filing of the translations of the claims
Jun 22, 2017
French translation of claims
Jun 22, 2017
German translation of the claims
Jun 22, 2017
Letter accompanying subsequently filed items
Apr 25, 2017
Bibliographic data of the European patent application
Apr 25, 2017
Communication about intention to grant a European patent
Apr 25, 2017
Intention to grant (signatures)
Apr 25, 2017
Text intended for grant (clean copy)
Apr 25, 2017
Text intended for grant (version for approval)
Mar 23, 2017
Examination started
Dec 7, 2016
(Electronic) Receipt
Dec 7, 2016
Amended claims filed after receipt of (European) search report
Dec 7, 2016
Amended claims with annotations
Dec 7, 2016
Amendments received before examination
Dec 7, 2016
Letter accompanying subsequently filed items
Oct 10, 2016
Submission concerning representation
May 30, 2016
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
May 11, 2016
Communication regarding the transmission of the European search report
May 11, 2016
European search opinion
May 11, 2016
Information on Search Strategy
May 11, 2016
Supplementary European search report
Apr 25, 2016
Search started
Dec 11, 2015
(Electronic) Receipt
Dec 11, 2015
Amended claims filed after receipt of (European) search report
Dec 11, 2015
Amended claims with annotations
Dec 11, 2015
Amendments received before examination
Dec 11, 2015
Letter accompanying subsequently filed items
Sep 25, 2015
Communication of amended entries concerning the representative
Sep 17, 2015
Letter relating to the automatic debiting procedure
Sep 11, 2015
Submission concerning change of applicant's name
Sep 1, 2015
Confirmation of revocation of automatic debit order
Aug 17, 2015
Letter relating to the automatic debiting procedure
Jun 11, 2015
CDS Clean up - amended data concerning the representative of the applicant (Association)
Jun 3, 2015
Notification on forthcoming publication of bibliographic data
Jun 2, 2015
Communication regarding possible amendment of the application/payment of claims fee
Mar 11, 2015
Loss of priority right
Feb 27, 2015
Communication to designated inventor
Jan 7, 2015
Copy of the international preliminary report on patentability
Jan 5, 2015
Invitation to file observations regarding restoration of priority right
Dec 8, 2014
(Electronic) Receipt
Dec 8, 2014
Annex
Dec 8, 2014
Request for entry into the European phase
Nov 26, 2014
Notification of the recording of a change
Oct 31, 2014
Information on entry into European phase
Jun 26, 2014
Copy of the international search report
Jun 26, 2014
International publication of the international search report
Dec 27, 2013
Published international application - A2

EP2888310

BAYER MATERIALSCIENCE

Application Number: EP13806210A
Filing Date: Jul 18, 2013
Status: Revoked; Jul 19, 2019
Publication Date: Aug 23, 2017
External Links: Slate, Register , Google Patents