Nitrided Piston Ring Resistant To Crack Propagation

Patent No. EP2520833 (titled "Nitrided Piston Ring Resistant To Crack Propagation") was filed by Mahle Metal Leve on Dec 21, 2010. The application was issued on May 6, 2015.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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
FEDERAL-MOGUL BURSCHEID GMBH	Feb 4, 2016	HOFFMANN EITLE

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

Jun 21, 2018
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jun 21, 2018
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jun 19, 2018
Termination of the opposition proceedings with revocation of patent
Mar 12, 2018
Advice of delivery
Mar 12, 2018
Advice of delivery
Mar 12, 2018
Advice of delivery
Mar 9, 2018
Advice of delivery
Mar 8, 2018
Acknowledgement of a document
Mar 8, 2018
Acknowledgement of a document
Mar 8, 2018
Annex to the communication - opposition
Mar 8, 2018
Decision of the Opposition Division and instruction
Mar 8, 2018
Decision revoking the European patent
Mar 8, 2018
Grounds for the decision (Annex) - opposition
Mar 8, 2018
Internal form - Opposition/addressees
Mar 8, 2018
Internal form - Opposition/addressees
Mar 8, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 8, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 8, 2018
Provision of a copy of the minutes - opposition procedure
Mar 8, 2018
Scanned annex to a communication - opposition procedure
Mar 8, 2018
Scanned annex to a communication - opposition procedure
Dec 1, 2017
Information about the result of oral proceedings
Oct 10, 2017
Brief communication - Opposition proceedings
Oct 10, 2017
Brief communication - Opposition proceedings
Oct 9, 2017
Brief communication - Opposition proceedings
Oct 9, 2017
Brief communication - Opposition proceedings
Oct 9, 2017
Non-patent literature cited during the opposition procedure
Oct 9, 2017
Written submission in preparation to/during oral proceedings
Oct 2, 2017
Non-patent literature cited during the opposition procedure
Oct 2, 2017
Non-patent literature cited during the opposition procedure
Oct 2, 2017
Non-patent literature cited during the opposition procedure
Oct 2, 2017
Oral proceedings: reply to date proposed
Sep 29, 2017
(Electronic) Receipt
Sep 29, 2017
Letter accompanying subsequently filed items
Sep 29, 2017
Non-patent literature cited during the opposition procedure
Sep 29, 2017
Written submission in preparation to/during oral proceedings
Sep 14, 2017
Brief communication - Opposition proceedings
Sep 10, 2017
Request for interpreters during oral proceedings
Jun 16, 2017
Advice of delivery
Jun 13, 2017
Advice of delivery
Jun 12, 2017
Advice of delivery
Jun 9, 2017
Acknowledgement of a document
Jun 9, 2017
Acknowledgement of a document
Jun 9, 2017
Annex to the communication - opposition
Jun 9, 2017
Information concerning oral proceedings
Jun 9, 2017
Preparation for oral proceedings
Jun 9, 2017
Summons to attend oral proceedings
Jun 9, 2017
Summons to attend oral proceedings
Oct 20, 2016
Advice of delivery
Oct 17, 2016
Brief communication - Opposition proceedings
Sep 23, 2016
Letter which had not been notified
Sep 16, 2016
Reply of the patent proprietor to the notice(s) of opposition
Sep 15, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jun 16, 2016
Brief communication - Opposition proceedings
Jun 16, 2016
Grant of extension of time limit (opposition procedure)
Jun 12, 2016
Request for extension of time limit
May 30, 2016
Brief communication - Opposition proceedings
May 27, 2016
Communication of amended entries concerning the representative
Apr 27, 2016
Submission concerning change of proprietor's representative
Mar 21, 2016
Communication of a notice of opposition and request to file observations
Mar 21, 2016
Notice of further oppositions to opponent(s)
Feb 22, 2016
Communication of a notice of opposition - first information to patent proprietor
Feb 4, 2016
Non-patent literature cited during the opposition procedure
Feb 4, 2016
Notice of opposition
Feb 4, 2016
Notice of opposition
Feb 4, 2016
Patent document cited during the opposition procedure
Feb 4, 2016
Patent document cited during the opposition procedure
Feb 4, 2016
Patent document cited during the opposition procedure
Feb 4, 2016
Payment of fees and costs
May 6, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 10, 2015
Decision to grant a European patent
Mar 18, 2015
(Electronic) Receipt
Mar 18, 2015
Filing of the translations of the claims
Mar 18, 2015
French translation of claims
Mar 18, 2015
German translation of the claims
Nov 21, 2014
Bibliographic data of the European patent application
Nov 21, 2014
Communication about intention to grant a European patent
Nov 21, 2014
Intention to grant (signatures)
Nov 21, 2014
Text intended for grant (clean copy)
Nov 21, 2014
Text intended for grant (version for approval)
Nov 7, 2014
Annexes in respect of a client data request
Aug 13, 2014
CDS Clean up - amended applicant details
May 22, 2014
Annex to the communication
May 22, 2014
Consultation by telephone/in person
May 22, 2014
Result of consultation by telephone/in person
May 12, 2014
(Electronic) Receipt
May 12, 2014
Amended claims filed after receipt of (European) search report
May 12, 2014
Amended description filed after receipt of (European) search report
May 12, 2014
Amended drawings filed after receipt of (European) search report
May 12, 2014
Amendments received before examination
May 12, 2014
Examination started
May 12, 2014
Letter accompanying subsequently filed items
Feb 4, 2013
Notice drawing attention to the payment of the renewal fee and additional fee
Oct 25, 2012
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Oct 10, 2012
Notification of forthcoming publication
Jul 17, 2012
(Electronic) Receipt
Jul 17, 2012
Abstract
Jul 17, 2012
Claims
Jul 17, 2012
Description
Jul 17, 2012
Drawings
Jul 17, 2012
Request for entry into the European phase
Jul 17, 2012
Submission concerning representation
Jul 10, 2012
Annexes to the international preliminary examination report
Jul 10, 2012
Copy of the international preliminary examination report
May 11, 2012
Information on entry into European phase
Mar 2, 2012
Annex to International preliminary examination report
Mar 2, 2012
International preliminary examination report
Mar 2, 2012
International preliminary examination report
Mar 2, 2012
International preliminary examination report - free text sheet
Mar 2, 2012
International preliminary examination report - free text sheet
Mar 2, 2012
International preliminary examination report - points I-VIII
Mar 2, 2012
International preliminary examination report - points I-VIII
Mar 2, 2012
Notification of documents sent to WIPO
Mar 2, 2012
Transmittal of International Preliminary Examination Report
Dec 19, 2011
Notification of documents sent to WIPO
Dec 16, 2011
Invitation to pay prescribed fees together with late payment fee (Rule 58bis PCT)
Dec 12, 2011
Notification of election of EPO
Dec 5, 2011
Amendments of documents (Article 19 PCT)
Nov 24, 2011
Notification of documents sent to WIPO
Nov 24, 2011
Notification of receipt of demand
Nov 3, 2011
Document concerning fees and payments
Nov 3, 2011
Letter regarding PCTII procedure
Nov 3, 2011
PCT demand form
Nov 3, 2011
PCT(IPEA): Amended sheet - claims
Nov 3, 2011
PCT(IPEA): Amended sheet - claims
Oct 21, 2011
Document concerning fees and payments
Oct 21, 2011
Document concerning fees and payments
Oct 21, 2011
Letter regarding PCTII procedure
Oct 21, 2011
Letter regarding PCTII procedure
Oct 21, 2011
PCT demand form
Oct 21, 2011
PCT demand form
Oct 21, 2011
PCT(IPEA): Amended sheet - claims
Oct 21, 2011
PCT(IPEA): Amended sheet - claims
Oct 21, 2011
PCT(IPEA): Amended sheet - claims
Oct 21, 2011
PCT(IPEA): Amended sheet - claims
Sep 1, 2011
Copy of the international search report
Sep 1, 2011
Copy of the translated international search report
Sep 1, 2011
International publication of the international search report
Jul 27, 2011
Priority document (electronically transmitted)
Jul 7, 2011
Published international application - A2
Jul 1, 2011
Written opinion of the ISA, boxes No. I to VIII
Jul 1, 2011
Written opinion of the ISA, cover sheet
Jul 1, 2011
Written opinion of the ISA, supplemental box
Feb 11, 2011
Abstract
Feb 11, 2011
Annex
Feb 11, 2011
Claims
Feb 11, 2011
Description
Feb 11, 2011
Drawings

EP2520833

MAHLE METAL LEVE

Application Number: EP10810842A
Filing Date: Dec 21, 2010
Status: Revoked; Jun 22, 2018
Publication Date: May 6, 2015
External Links: Slate, Register , Google Patents

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Nitrided Piston Ring Resistant To Crack Propagation

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Dossier Documents

EP2520833