Cis-1,4-Polydienes With Improved Cold Flow Resistance

Patent No. EP3250617 (titled "Cis-1,4-Polydienes With Improved Cold Flow Resistance") was filed by Bridgestone on Jan 28, 2016. The application was issued on Jan 2, 2019.

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
ARLANXEO DEUTSCHLAND	Oct 2, 2019	KUTZENBERGER WOLFF & PARTNER

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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Sep 13, 2021
Refund of fees
Sep 9, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Sep 9, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Sep 9, 2021
Termination of the opposition proceedings with maintenance of patent
Aug 25, 2021
F3345 Forwarding of submissions to parties
Aug 20, 2021
(Electronic) Receipt
Aug 20, 2021
Composition of the board (T)
Aug 20, 2021
Letter accompanying subsequently filed items
Aug 20, 2021
Withdrawal of an appeal
Jun 18, 2021
F3204 Communication of the file number to the parties
Jun 18, 2021
F3204 Communication of the file number to the parties
Jun 15, 2021
(Electronic) Receipt
Jun 15, 2021
Letter accompanying subsequently filed items
Jun 15, 2021
Notice of appeal
May 28, 2021
Advice of delivery
May 28, 2021
Communication about missing advice of delivery
Apr 23, 2021
Advice of delivery
Apr 22, 2021
Decision of the Opposition Division and instruction
Apr 22, 2021
Decision rejecting the opposition
Apr 22, 2021
Grounds for the decision (Annex) - opposition
Apr 22, 2021
Internal form - Opposition/addressees
Apr 22, 2021
Means of redress
Apr 22, 2021
Transmittal of decision / summons - opposition
Apr 22, 2021
Transmittal of decision / summons - opposition
Feb 19, 2021
Brief communication - Opposition proceedings
Feb 15, 2021
(Electronic) Receipt
Feb 15, 2021
Letter accompanying subsequently filed items
Feb 15, 2021
Withdrawal of a request for oral proceedings
Aug 11, 2020
Advice of delivery
Aug 4, 2020
Advice of delivery
Aug 3, 2020
Advice of delivery
Jul 29, 2020
Acknowledgement of a document
Jul 29, 2020
Acknowledgement of a document
Jul 29, 2020
Annex to the communication - opposition
Jul 29, 2020
Information concerning oral proceedings
Jul 29, 2020
Summons to attend oral proceedings
Jul 29, 2020
Summons to attend oral proceedings
Apr 30, 2020
Brief communication - Opposition proceedings
Apr 24, 2020
(Electronic) Receipt
Apr 24, 2020
Citation in opposition procedure - 018
Apr 24, 2020
Consolidated list of cited opposition documents
Apr 24, 2020
Letter regarding the opposition procedure (no time limit)
Apr 24, 2020
Reply of the patent proprietor to the notice(s) of opposition
Feb 11, 2020
Brief communication - Opposition proceedings
Feb 11, 2020
Grant of extension of time limit (opposition procedure)
Feb 5, 2020
(Electronic) Receipt
Feb 5, 2020
Letter accompanying subsequently filed items
Feb 5, 2020
Request for extension of time limit
Jan 31, 2020
Communication confirming withdrawal from representation
Jan 31, 2020
Communication of amended entries concerning the representative
Jan 27, 2020
(Electronic) Receipt
Jan 27, 2020
Letter accompanying subsequently filed items
Jan 27, 2020
Submission concerning change of proprietor's representative
Jan 23, 2020
(Electronic) Receipt
Jan 23, 2020
Letter accompanying subsequently filed items
Jan 23, 2020
Submission concerning change of proprietor's representative
Oct 15, 2019
Communication of a notice of opposition and request to file observations
Oct 15, 2019
Notice of further oppositions to opponent(s)
Oct 10, 2019
Communication of a notice of opposition - first information to patent proprietor
Oct 2, 2019
(Electronic) Receipt
Oct 2, 2019
Citation in opposition procedure - 001
Oct 2, 2019
Citation in opposition procedure - 002
Oct 2, 2019
Citation in opposition procedure - 003
Oct 2, 2019
Citation in opposition procedure - 004
Oct 2, 2019
Citation in opposition procedure - 005
Oct 2, 2019
Citation in opposition procedure - 006
Oct 2, 2019
Citation in opposition procedure - 007
Oct 2, 2019
Citation in opposition procedure - 008
Oct 2, 2019
Citation in opposition procedure - 009
Oct 2, 2019
Citation in opposition procedure - 010
Oct 2, 2019
Citation in opposition procedure - 011
Oct 2, 2019
Citation in opposition procedure - 012
Oct 2, 2019
Citation in opposition procedure - 013
Oct 2, 2019
Citation in opposition procedure - 014
Oct 2, 2019
Citation in opposition procedure - 015
Oct 2, 2019
Citation in opposition procedure - 016
Oct 2, 2019
Citation in opposition procedure - 017
Oct 2, 2019
Notice of opposition
Oct 2, 2019
Notice of opposition
Jan 14, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Dec 6, 2018
Decision to grant a European patent
Nov 22, 2018
(Electronic) Receipt
Nov 22, 2018
Filing of the translations of the claims
Nov 22, 2018
French translation of claims
Nov 22, 2018
German translation of the claims
Jul 30, 2018
Bibliographic data of the European patent application
Jul 30, 2018
Communication about intention to grant a European patent
Jul 30, 2018
Intention to grant (signatures)
Jul 30, 2018
Text intended for grant (clean copy)
Jul 30, 2018
Text intended for grant (version for approval)
Apr 12, 2018
(Electronic) Receipt
Apr 12, 2018
Amended claims with annotations
Apr 12, 2018
Amended description with annotations
Apr 12, 2018
Claims
Apr 12, 2018
Description
Apr 12, 2018
Letter accompanying subsequently filed items
Apr 12, 2018
Reply to communication from the Examining Division
Dec 4, 2017
Annex to the communication
Dec 4, 2017
Communication from the Examining Division
Nov 27, 2017
Examination started
Nov 8, 2017
Notification on forthcoming publication of bibliographic data
Sep 1, 2017
Communication to designated inventor
Aug 14, 2017
Copy of the international preliminary report on patentability
Aug 8, 2017
Notification of the recording of a change
Aug 8, 2017
Notification of the recording of a change
Aug 8, 2017
Notification of the recording of a change
Aug 8, 2017
Notification of the recording of a change
Jul 25, 2017
(Electronic) Receipt
Jul 25, 2017
Amended claims filed after receipt of (European) search report
Jul 25, 2017
Amended claims with annotations
Jul 25, 2017
Request for entry into the European phase
Jun 9, 2017
Information on entry into European phase
Aug 24, 2016
Priority document (electronically transmitted)
Aug 24, 2016
Priority document (electronically transmitted)
Aug 24, 2016
Priority document (electronically transmitted)
Aug 4, 2016
Copy of the international search report
Aug 4, 2016
Published international application - A1
Jun 8, 2016
ISR: cited documents
Jun 7, 2016
Written opinion of the ISA, boxes No. I to VIII
Jun 7, 2016
Written opinion of the ISA, cover sheet
Jun 7, 2016
Written opinion of the ISA, supplemental box
Mar 22, 2016
Notification of receipt of Search copy
Mar 4, 2016
Abstract
Mar 4, 2016
Annex
Mar 4, 2016
Claims
Mar 4, 2016
Description
Mar 4, 2016
Drawings
Mar 4, 2016
Fee calculation sheet for an international application
Mar 4, 2016
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Mar 4, 2016
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
Mar 4, 2016
Request form for international application (copy for ISA/EP)

EP3250617

BRIDGESTONE

Application Number: EP16708232A
Filing Date: Jan 28, 2016
Status: Opposition Rejected; Sep 10, 2021
Publication Date: Jan 2, 2019
External Links: Slate, Register , Google Patents

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Cis-1,4-Polydienes With Improved Cold Flow Resistance

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Dossier Documents

EP3250617