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The patent EP2790924 was granted to Compagnie Gnrale DES Etablissements Michelin on Mar 26, 2025. The application was filed on Dec 12, 2012 under application number EP12799188A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| CABOT | Nov 21, 2018 | GRUNECKER PATENT | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1127909 |
| DESCRIPTION | FR2740778 |
| DESCRIPTION | FR2765882 |
| DESCRIPTION | US2004051210 |
| DESCRIPTION | US2004132880 |
| DESCRIPTION | US2005016650 |
| DESCRIPTION | US2005016651 |
| DESCRIPTION | US2006089445 |
| DESCRIPTION | US5977238 |
| DESCRIPTION | US6013718 |
| DESCRIPTION | US6048923 |
| DESCRIPTION | US6503973 |
| DESCRIPTION | US6774255 |
| DESCRIPTION | US6815473 |
| DESCRIPTION | WO0192402 |
| DESCRIPTION | WO02083782 |
| DESCRIPTION | WO0210269 |
| DESCRIPTION | WO0230939 |
| DESCRIPTION | WO0231041 |
| DESCRIPTION | WO03002648 |
| DESCRIPTION | WO03002649 |
| DESCRIPTION | WO03016837 |
| DESCRIPTION | WO2004096865 |
| DESCRIPTION | WO2006069792 |
| DESCRIPTION | WO2006069793 |
| DESCRIPTION | WO2006125532 |
| DESCRIPTION | WO2006125533 |
| DESCRIPTION | WO2006125534 |
| DESCRIPTION | WO2008141702 |
| DESCRIPTION | WO2009000750 |
| DESCRIPTION | WO2009000752 |
| INTERNATIONAL-SEARCH-REPORT | JP2007161818 |
| INTERNATIONAL-SEARCH-REPORT | JP2010013552 |
| INTERNATIONAL-SEARCH-REPORT | JP2011057967 |
| INTERNATIONAL-SEARCH-REPORT | US3700621 |
| INTERNATIONAL-SEARCH-REPORT | WO2011034585 |
| OPPOSITION | EP2652015 |
| OPPOSITION | US6048923 |
| OPPOSITION | US6075084 |
| OPPOSITION | US6929783 |
| OPPOSITION | WO2011034585 |
| OPPOSITION | WO2012080109 |
| OPPOSITION | WO2012080111 |
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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Feb 27, 2025
Jul 18, 2024
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Advice of delivery
Appeal
Sep 27, 2023
Refund of fees
Appeal
Sep 25, 2023
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Advice of delivery
Appeal
Sep 20, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Sep 19, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
Feb 9, 2023
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(Electronic) Receipt
Appeal
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Advice of delivery
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Nov 16, 2021
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(Electronic) Receipt
Appeal
Nov 8, 2021
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(Electronic) Receipt
Appeal
Sep 7, 2021
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
Jul 8, 2021
Advice of delivery
Appeal
Jul 8, 2021
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Nov 2, 2017
(Electronic) Receipt
Search/Exam
Nov 2, 2017
Amended claims with annotations
Search/Exam
Nov 2, 2017
Claims
Search/Exam
Nov 2, 2017
English translation of the claims
Search/Exam
Nov 2, 2017
Filing of the translations of the claims
Search/Exam
Nov 2, 2017
German translation of the claims
Search/Exam
Nov 2, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 11, 2017
Jul 11, 2017
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Intention to grant (signatures)
Search/Exam
Jul 11, 2017
Text intended for grant (clean copy)
Search/Exam
Jul 11, 2017
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Jun 7, 2017
Annexes in respect of a client data request
Search/Exam
Jun 7, 2017
Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
May 24, 2017
Dec 23, 2016
(Electronic) Receipt
Search/Exam
Dec 23, 2016
Amended claims with annotations
Search/Exam
Dec 23, 2016
Amended description with annotations
Search/Exam
Dec 23, 2016
Claims
Search/Exam
Dec 23, 2016
Description
Search/Exam
Dec 23, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2016
Oct 6, 2016
Sep 29, 2016
(Electronic) Receipt
Search/Exam
Sep 29, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2016
Aug 29, 2016
Annex to the communication
Search/Exam
Aug 29, 2016
Communication from the Examining Division
Search/Exam
Apr 28, 2016
Decision to allow further processing
Search/Exam
Apr 14, 2016
(Electronic) Receipt
Search/Exam
Apr 14, 2016
Amended claims with annotations
Search/Exam
Apr 14, 2016
Claims
Search/Exam
Apr 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2016
Request for further processing
Search/Exam
Feb 9, 2016
Oct 22, 2015
Oct 19, 2015
(Electronic) Receipt
Search/Exam
Oct 19, 2015
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2015
Jun 30, 2015
Annex to the communication
Search/Exam
Jun 30, 2015
Communication from the Examining Division
Search/Exam
Jun 25, 2015
Examination started
Search/Exam
Sep 24, 2014
Aug 1, 2014
Jul 25, 2014
Priority search results copy provided by EPO
Search/Exam
Jul 22, 2014
Communication to designated inventor
Search/Exam
Jul 22, 2014
Communication to designated inventor
Search/Exam
Jul 3, 2014
(Electronic) Receipt
Search/Exam
Jul 3, 2014
Jul 3, 2014
Jul 3, 2014
Request for entry into the European phase
Search/Exam
Apr 25, 2014
Information on entry into European phase
Search/Exam
Jul 11, 2013
Jun 20, 2013
Copy of the international search report
Search/Exam
Jun 20, 2013
Copy of the international search report
Search/Exam
Jun 20, 2013
Published international application - A1
Search/Exam
Feb 19, 2013
Feb 19, 2013
Feb 19, 2013
Dec 12, 2012
(Electronic) Receipt
PCTRO
Dec 12, 2012
Abstract
PCTRO
Dec 12, 2012
Claims
PCTRO
Dec 12, 2012
Description
PCTRO