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The patent EP3452305 was granted to Compagnie Gnrale DES Etablissements Michelin on Nov 22, 2023. The application was filed on Jun 21, 2017 under application number EP17731568A. 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 |
|---|---|---|---|
| NOKIAN RENKAAT OYJ | Oct 5, 2021 | BERGGREN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE2304036 |
| INTERNATIONAL-SEARCH-REPORT | EP0813981 |
| INTERNATIONAL-SEARCH-REPORT | FR2131913 |
| INTERNATIONAL-SEARCH-REPORT | GB1546780 |
| OPPOSITION | EP1055509 |
| OPPOSITION | FR2131913 |
| OPPOSITION | FR2982529 |
| OPPOSITION | JP2015039898 |
| OPPOSITION | JP4487668B |
| OPPOSITION | RU2583235 |
| OPPOSITION | SE227484 |
| OPPOSITION | US2004231775 |
| OPPOSITION | US2014290814 |
| OPPOSITION | US2014338806 |
| OPPOSITION | US4843120 |
| OPPOSITION | WO2011138504 |
| OPPOSITION | WO2014006857 |
| OPPOSITION | WO2014072853 |
| OPPOSITION | WO2016045807 |
| OPPOSITION | WO2018001806 |
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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Oct 26, 2023
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Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2023
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Annex
OPPO
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Decision to grant a European patent
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Nov 24, 2020
(Electronic) Receipt
Search/Exam
Nov 24, 2020
English translation of the claims
Search/Exam
Nov 24, 2020
Filing of the translations of the claims
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Nov 24, 2020
German translation of the claims
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Nov 24, 2020
Letter accompanying subsequently filed items
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(Electronic) Receipt
Search/Exam
Sep 11, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2020
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Intention to grant (signatures)
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Aug 5, 2020
Text intended for grant (clean copy)
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Aug 5, 2020
Jun 2, 2020
(Electronic) Receipt
Search/Exam
Jun 2, 2020
Amended claims with annotations
Search/Exam
Jun 2, 2020
Claims
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Jun 2, 2020
Description
Search/Exam
Jun 2, 2020
Letter accompanying subsequently filed items
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Jun 2, 2020
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(Electronic) Receipt
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May 18, 2020
Letter accompanying subsequently filed items
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May 18, 2020
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Annex to the communication
Search/Exam
Jan 17, 2020
Communication from the Examining Division
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Jan 10, 2020
Examination started
Search/Exam
Jul 3, 2019
(Electronic) Receipt
Search/Exam
Jul 3, 2019
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Amendments received before examination
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Jul 3, 2019
Letter accompanying subsequently filed items
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Feb 13, 2019
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Communication to designated inventor
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Jan 3, 2019
Dec 21, 2018
Priority search results copy provided by EPO
Search/Exam
Dec 7, 2018
(Electronic) Receipt
Search/Exam
Dec 7, 2018
Request for entry into the European phase
Search/Exam
Nov 30, 2018
Notification of the recording of a change
Search/Exam
Nov 9, 2018
Information on entry into European phase
Search/Exam
Sep 26, 2018
Sep 20, 2018
Feb 21, 2018
Notification of the recording of a change
Search/Exam
Feb 1, 2018
Jan 4, 2018
Copy of the international search report
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Jan 4, 2018
Copy of the international search report
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Jan 4, 2018
Published international application - A1
Search/Exam
Aug 31, 2017
ISR: cited documents
PCTISA
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PCTRO
Jun 21, 2017
Abstract
PCTRO
Jun 21, 2017
Claims
PCTRO
Jun 21, 2017
Description
PCTRO
Jun 21, 2017
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PCTRO
Jun 21, 2017
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Priority search results
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