Paper Comprising Microfilaments

Patent No. EP2661522 (titled "Paper Comprising Microfilaments") was filed by Teijin Aramid on Dec 23, 2011. The application was issued on Oct 19, 2016.

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
E I DU PONT DE NEMOURS	Jul 18, 2017	DANNENBERGER

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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Jan 10, 2023
Termination of the opposition proceedings with revocation of patent
Jan 4, 2023
F3936 Acknowledgement of receipt Board of Appeal
Jan 3, 2023
F3936 Acknowledgement of receipt Board of Appeal
Jan 2, 2023
Decision of the Board of Appeal
Jan 2, 2023
F3032 Notification(s) of the decision
Jan 2, 2023
F3032 Notification(s) of the decision
Dec 16, 2022
Claims submitted during oral proceedings
Dec 16, 2022
F3013 Oral Proceedings: Forwarding minutes
Dec 16, 2022
F3013 Oral Proceedings: Forwarding minutes
Dec 16, 2022
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Dec 5, 2022
F3345 Forwarding of submissions to parties
Dec 2, 2022
(Electronic) Receipt
Dec 2, 2022
Annexes (other than cited documents) regarding appeal procedure
Dec 2, 2022
Annexes (other than cited documents) regarding appeal procedure
Dec 2, 2022
Annexes (other than cited documents) regarding appeal procedure
Dec 2, 2022
F3345 Forwarding of submissions to parties
Dec 2, 2022
Letter accompanying subsequently filed items
Dec 2, 2022
Letter dealing with oral proceedings during the appeal procedure
Dec 1, 2022
(Electronic) Receipt
Dec 1, 2022
Letter accompanying subsequently filed items
Dec 1, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 29, 2022
F3345 Forwarding of submissions to parties
Nov 28, 2022
(Electronic) Receipt
Nov 28, 2022
(Electronic) Receipt
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Nov 28, 2022
Letter accompanying subsequently filed items
Nov 28, 2022
Letter accompanying subsequently filed items
Nov 28, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 28, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 10, 2022
F3022 Oral proceedings: change of board composition
Nov 10, 2022
F3022 Oral proceedings: change of board composition
Nov 10, 2022
F3345 Forwarding of submissions to parties
Nov 7, 2022
(Electronic) Receipt
Nov 7, 2022
F3303.16 Change of composition of the Board (T)
Nov 7, 2022
Letter accompanying subsequently filed items
Nov 7, 2022
Letter dealing with oral proceedings during the appeal procedure
Apr 13, 2022
F3345 Forwarding of submissions to parties
Apr 8, 2022
(Electronic) Receipt
Apr 8, 2022
Annexes (other than cited documents) regarding appeal procedure
Apr 8, 2022
Annexes (other than cited documents) regarding appeal procedure
Apr 8, 2022
Letter relating to Appeal Procedure
Apr 1, 2022
F3345 Forwarding of submissions to parties
Mar 28, 2022
(Electronic) Receipt
Mar 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 28, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 28, 2022
Letter relating to Appeal Procedure
Mar 11, 2022
F3936 Acknowledgement of receipt Board of Appeal
Mar 10, 2022
F3345 Forwarding of submissions to parties
Mar 10, 2022
F3936 Acknowledgement of receipt Board of Appeal
Mar 9, 2022
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 9, 2022
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 9, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 9, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 7, 2022
(Electronic) Receipt
Mar 7, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 7, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 7, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 7, 2022
F3345 Forwarding of submissions to parties
Mar 7, 2022
Letter accompanying subsequently filed items
Mar 7, 2022
Letter dealing with oral proceedings during the appeal procedure
Mar 4, 2022
F3014 Oral Proceedings: Order cancelling/postponing
Mar 2, 2022
(Electronic) Receipt
Mar 2, 2022
Annexes (other than cited documents) regarding appeal procedure
Mar 2, 2022
Letter accompanying subsequently filed items
Mar 2, 2022
Letter dealing with oral proceedings during the appeal procedure
Feb 25, 2022
F3345 Forwarding of submissions to parties
Feb 22, 2022
(Electronic) Receipt
Feb 22, 2022
Letter accompanying subsequently filed items
Feb 22, 2022
Letter dealing with oral proceedings during the appeal procedure
Feb 22, 2022
Letter dealing with oral proceedings during the appeal procedure
Feb 18, 2022
F3345 Forwarding of submissions to parties
Feb 15, 2022
(Electronic) Receipt
Feb 15, 2022
Letter accompanying subsequently filed items
Feb 15, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 24, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 24, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 18, 2022
F3345 Forwarding of submissions to parties
Jan 13, 2022
(Electronic) Receipt
Jan 13, 2022
Letter accompanying subsequently filed items
Jan 13, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 10, 2022
F3345 Forwarding of submissions to parties
Jan 5, 2022
(Electronic) Receipt
Jan 5, 2022
Letter accompanying subsequently filed items
Jan 5, 2022
Letter dealing with oral proceedings during the appeal procedure
Nov 25, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 25, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 23, 2021
F3345 Forwarding of submissions to parties
Nov 16, 2021
(Electronic) Receipt
Nov 16, 2021
Letter accompanying subsequently filed items
Nov 16, 2021
Letter dealing with oral proceedings during the appeal procedure
Nov 16, 2021
Non-Patent Literature cited during the appeal procedure
Nov 16, 2021
Non-Patent Literature cited during the appeal procedure
Nov 16, 2021
Non-Patent Literature cited during the appeal procedure
Jun 7, 2021
F3936 Acknowledgement of receipt Board of Appeal
Jun 7, 2021
F3936 Acknowledgement of receipt Board of Appeal
Jun 7, 2021
F3936 Acknowledgement of receipt Board of Appeal
Jun 4, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 4, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 2, 2021
F3345 Forwarding of submissions to parties
May 31, 2021
F3014 Oral Proceedings: Order cancelling/postponing
May 28, 2021
(Electronic) Receipt
May 28, 2021
Annexes (other than cited documents) regarding appeal procedure
May 28, 2021
Letter accompanying subsequently filed items
May 28, 2021
Oral proceedings: Request for postponement
May 26, 2021
F3936 Acknowledgement of receipt Board of Appeal
May 21, 2021
(Electronic) Receipt
May 21, 2021
F3004 Communication of the Registry
May 21, 2021
F3004 Communication of the Registry
May 21, 2021
F3936 Acknowledgement of receipt Board of Appeal
May 17, 2021
F3936 Acknowledgement of receipt Board of Appeal
May 14, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
May 14, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
May 12, 2021
F3345 Forwarding of submissions to parties
May 10, 2021
F3014 Oral Proceedings: Order cancelling/postponing
May 7, 2021
(Electronic) Receipt
May 7, 2021
Annexes (other than cited documents) regarding appeal procedure
May 7, 2021
Letter accompanying subsequently filed items
May 7, 2021
Oral proceedings: Request for postponement
May 5, 2021
F3936 Acknowledgement of receipt Board of Appeal
Apr 30, 2021
F3011.1 Oral Proceedings: summons
Apr 30, 2021
F3011.1 Oral Proceedings: summons
Apr 26, 2021
F3010 Oral proceedings: order for summons
Feb 19, 2021
F3345 Forwarding of submissions to parties
Feb 15, 2021
(Electronic) Receipt
Feb 15, 2021
Letter accompanying subsequently filed items
Feb 15, 2021
Letter relating to Appeal Procedure
Feb 15, 2021
Non-Patent Literature cited during the appeal procedure
Feb 15, 2021
Non-Patent Literature cited during the appeal procedure
Feb 15, 2021
Non-Patent Literature cited during the appeal procedure
Feb 15, 2021
Non-Patent Literature cited during the appeal procedure
Jul 31, 2020
F3345 Forwarding of submissions to parties
Jul 28, 2020
(Electronic) Receipt
Jul 28, 2020
Letter accompanying subsequently filed items
Jul 28, 2020
Letter relating to Appeal Procedure
May 14, 2020
F3345 Forwarding of submissions to parties
May 11, 2020
(Electronic) Receipt
May 11, 2020
Letter accompanying subsequently filed items
May 11, 2020
Letter relating to Appeal Procedure
May 11, 2020
Non-Patent Literature cited during the appeal procedure
Jan 14, 2020
Composition of the board (T)
Jan 10, 2020
F3345 Forwarding of submissions to parties
Dec 20, 2019
Letter relating to Appeal Procedure
Dec 20, 2019
Non-Patent Literature cited during the appeal procedure
Sep 19, 2019
F3345 Forwarding of submissions to parties
Sep 13, 2019
(Electronic) Receipt
Sep 13, 2019
Amended claims with annotations
Sep 13, 2019
Amended claims with annotations
Sep 13, 2019
Auxiliary request during appeals procedure - 01
Sep 13, 2019
Auxiliary request during appeals procedure - 02
Sep 13, 2019
Claims
Sep 13, 2019
Letter accompanying subsequently filed items
Sep 13, 2019
Non-Patent Literature cited during the appeal procedure
Sep 13, 2019
Non-Patent Literature cited during the appeal procedure
Sep 13, 2019
Non-Patent Literature cited during the appeal procedure
Sep 13, 2019
Reply to appeal
May 6, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Non-Patent Literature cited during the appeal procedure
Apr 26, 2019
Patent Document cited during the appeal procedure
Apr 26, 2019
Statement of grounds of appeal
Feb 26, 2019
F3204 Communication of the file number to the parties
Feb 26, 2019
F3204 Communication of the file number to the parties
Feb 21, 2019
(Electronic) Receipt
Feb 21, 2019
Letter accompanying subsequently filed items
Feb 21, 2019
Notice of appeal
Feb 21, 2019
Processing of an appeal
Feb 7, 2019
Brief communication - Opposition proceedings
Feb 7, 2019
Brief communication - Opposition proceedings
Feb 1, 2019
Brief communication - Opposition proceedings
Jan 24, 2019
Request for correction
Jan 4, 2019
Advice of delivery
Jan 3, 2019
Advice of delivery
Jan 2, 2019
Advice of delivery
Jan 2, 2019
Advice of delivery
Dec 21, 2018
Acknowledgement of a document
Dec 21, 2018
Acknowledgement of a document
Dec 21, 2018
Annex to the communication - opposition
Dec 21, 2018
Decision of the Opposition Division and instruction
Dec 21, 2018
Grounds for the decision (Annex) - opposition
Dec 21, 2018
Interlocutory decision in opposition proceedings
Dec 21, 2018
Internal form - Opposition/addressees
Dec 21, 2018
Internal form - Opposition/addressees
Dec 21, 2018
Means of redress
Dec 21, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 21, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 21, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 21, 2018
OPPODREX with handwritten amendments
Dec 21, 2018
Provision of a copy of the minutes - opposition procedure
Dec 21, 2018
Scanned annex to a communication - opposition procedure
Nov 13, 2018
Information about the result of oral proceedings
Nov 7, 2018
Brief communication - Opposition proceedings
Oct 30, 2018
Any annexes (other than citation) to an opposition letter
Oct 30, 2018
Any annexes (other than citation) to an opposition letter
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Non-patent literature cited during the opposition procedure
Oct 30, 2018
Written submission in preparation to/during oral proceedings
Oct 30, 2018
Written submission in preparation to/during oral proceedings
Sep 19, 2018
Brief communication - Opposition proceedings
Sep 19, 2018
Brief communication - Opposition proceedings
Sep 17, 2018
Brief communication - Opposition proceedings
Sep 10, 2018
Request for interpreters during oral proceedings
Sep 7, 2018
(Electronic) Receipt
Sep 7, 2018
Amended claims with annotations
Sep 7, 2018
Any annexes (other than citation) to an opposition letter
Sep 7, 2018
Claims
Sep 7, 2018
Letter accompanying subsequently filed items
Sep 7, 2018
Non-patent literature cited during the opposition procedure
Sep 7, 2018
Written submission in preparation to/during oral proceedings
Jul 25, 2018
Brief communication - Opposition proceedings
Jul 17, 2018
Any annexes (other than citation) to an opposition letter
Jul 17, 2018
Non-patent literature cited during the opposition procedure
Jul 17, 2018
Non-patent literature cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Patent document cited during the opposition procedure
Jul 17, 2018
Written submission in preparation to/during oral proceedings
Jul 11, 2018
Brief communication - Opposition proceedings
Jul 4, 2018
(Electronic) Receipt
Jul 4, 2018
Letter accompanying subsequently filed items
Jul 4, 2018
Request for interpreters during oral proceedings
May 2, 2018
Advice of delivery
Apr 30, 2018
Advice of delivery
Apr 30, 2018
Advice of delivery
Apr 27, 2018
Advice of delivery
Apr 26, 2018
Acknowledgement of a document
Apr 26, 2018
Acknowledgement of a document
Apr 26, 2018
Annex to the communication - opposition
Apr 26, 2018
Information concerning oral proceedings
Apr 26, 2018
Preparation for oral proceedings
Apr 26, 2018
Summons to attend oral proceedings
Apr 26, 2018
Summons to attend oral proceedings
Jan 4, 2018
Brief communication - Opposition proceedings
Dec 21, 2017
(Electronic) Receipt
Dec 21, 2017
Amended claims with annotations
Dec 21, 2017
Any annexes (other than citation) to an opposition letter
Dec 21, 2017
Claims
Dec 21, 2017
Letter accompanying subsequently filed items
Dec 21, 2017
Reply of the patent proprietor to the notice(s) of opposition
Aug 23, 2017
Communication of a notice of opposition and request to file observations
Aug 23, 2017
Notice of further oppositions to opponent(s)
Jul 24, 2017
Communication of a notice of opposition - first information to patent proprietor
Jul 18, 2017
(Electronic) Receipt
Jul 18, 2017
Any annexes (other than citation) to an opposition letter
Jul 18, 2017
Non-patent literature cited during the opposition procedure
Jul 18, 2017
Non-patent literature cited during the opposition procedure
Jul 18, 2017
Non-patent literature cited during the opposition procedure
Jul 18, 2017
Notice of opposition
Jul 18, 2017
Notice of opposition
Jul 18, 2017
Patent document cited during the opposition procedure
Jul 18, 2017
Patent document cited during the opposition procedure
Jul 18, 2017
Patent document cited during the opposition procedure
Oct 20, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 22, 2016
Decision to grant a European patent
Sep 12, 2016
(Electronic) Receipt
Sep 12, 2016
Filing of the translations of the claims
Sep 12, 2016
French translation of claims
Sep 12, 2016
German translation of the claims
Sep 12, 2016
Letter accompanying subsequently filed items
Jun 22, 2016
Bibliographic data of the European patent application
Jun 22, 2016
Communication about intention to grant a European patent
Jun 22, 2016
Intention to grant (signatures)
Jun 22, 2016
Text intended for grant (clean copy)
Jun 22, 2016
Text intended for grant (version for approval)
Jun 15, 2016
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
May 31, 2016
(Electronic) Receipt
May 31, 2016
Description
May 31, 2016
Letter accompanying subsequently filed items
May 31, 2016
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
May 20, 2016
Bibliographic data of the European patent application
May 20, 2016
Communication about intention to grant a European patent
May 20, 2016
Intention to grant (signatures)
May 20, 2016
Text intended for grant (clean copy)
May 20, 2016
Text intended for grant (version for approval)
Jan 14, 2016
(Electronic) Receipt
Jan 14, 2016
Amended description with annotations
Jan 14, 2016
Description
Jan 14, 2016
Letter accompanying subsequently filed items
Jan 14, 2016
Reply to communication from the Examining Division
Oct 2, 2015
Annex to the communication
Oct 2, 2015
Communication from the Examining Division
Nov 25, 2014
(Electronic) Receipt
Nov 25, 2014
Annex
Nov 25, 2014
Claims
Nov 25, 2014
Letter accompanying subsequently filed items
Nov 25, 2014
Reply to communication from the Examining Division
May 23, 2014
Annex to the communication
May 23, 2014
Communication from the Examining Division
Apr 25, 2014
Examination started
Jan 24, 2014
(Electronic) Receipt
Jan 24, 2014
Amended claims filed after receipt of (European) search report
Jan 24, 2014
Amended description filed after receipt of (European) search report
Jan 24, 2014
Amendments received before examination
Jan 24, 2014
Annex
Jan 24, 2014
Letter accompanying subsequently filed items
Oct 16, 2013
Notification on forthcoming publication of bibliographic data
Aug 19, 2013
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Aug 14, 2013
Communication to designated inventor
Aug 14, 2013
Communication to designated inventor
Aug 14, 2013
Communication to designated inventor
Aug 9, 2013
Priority search results copy provided by EPO
Jul 24, 2013
Copy of the international preliminary report on patentability
Jun 7, 2013
(Electronic) Receipt
Jun 7, 2013
Request for entry into the European phase
May 17, 2013
Information on entry into European phase
Jul 31, 2012
Priority document (electronically transmitted)
Jul 12, 2012
Copy of the international search report
Jul 12, 2012
Published international application - A1
Feb 16, 2012
Written opinion of the ISA, boxes No. I to VIII
Feb 16, 2012
Written opinion of the ISA, cover sheet
Feb 16, 2012
Written opinion of the ISA, supplemental box
Feb 15, 2012
Notification of the recording of a change
Feb 15, 2012
Notification of the recording of a change
Feb 15, 2012
Notification of the recording of a change
Feb 15, 2012
Notification of the recording of a change
Dec 23, 2011
(Electronic) Receipt
Dec 23, 2011
Abstract
Dec 23, 2011
Claims
Dec 23, 2011
Description

EP2661522

TEIJIN ARAMID

Application Number: EP11807929A
Filing Date: Dec 23, 2011
Status: Revoked; Jan 10, 2023
Publication Date: Oct 19, 2016
External Links: Slate, Register , Google Patents

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Paper Comprising Microfilaments

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Dossier Documents

EP2661522