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The patent EP3271617 was granted to Compagnie Engrenages ET Reducteurs Messian Durand on Feb 8, 2023. The application was filed on Mar 17, 2016 under application number EP16710239A. 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 |
|---|---|---|---|
| FLENDER | Dec 1, 2020 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE19917609 |
| INTERNATIONAL-SEARCH-REPORT | DE3226816 |
| INTERNATIONAL-SEARCH-REPORT | EP1757839 |
| INTERNATIONAL-SEARCH-REPORT | US4013235 |
| OPPOSITION | CH662006 |
| OPPOSITION | CN102717291 |
| OPPOSITION | DE1557107 |
| OPPOSITION | DE3523378 |
| OPPOSITION | EP0144850 |
| OPPOSITION | US4753534 |
| OPPOSITION | WO9420201 |
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.
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Decision to grant a European patent
Search/Exam
Jan 24, 2020
(Electronic) Receipt
Search/Exam
Jan 24, 2020
English translation of the claims
Search/Exam
Jan 24, 2020
Filing of the translations of the claims
Search/Exam
Jan 24, 2020
German translation of the claims
Search/Exam
Jan 24, 2020
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Sep 26, 2019
Text intended for grant (clean copy)
Search/Exam
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(Electronic) Receipt
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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(Electronic) Receipt
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Annex to the communication
Search/Exam
Jul 18, 2018
Communication from the Examining Division
Search/Exam
Jul 12, 2018
Examination started
Search/Exam
Jan 4, 2018
(Electronic) Receipt
Search/Exam
Jan 4, 2018
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Amended claims with annotations
Search/Exam
Jan 4, 2018
Amendments received before examination
Search/Exam
Jan 4, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2018
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Communication to designated inventor
Search/Exam
Oct 18, 2017
Priority search results copy provided by EPO
Search/Exam
Oct 2, 2017
Sep 15, 2017
(Electronic) Receipt
Search/Exam
Sep 15, 2017
Request for entry into the European phase
Search/Exam
Jul 26, 2017
Information on entry into European phase
Search/Exam
Oct 11, 2016
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Copy of the international search report
Search/Exam
Sep 22, 2016
Published international application - A1
Search/Exam
May 18, 2016
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(Electronic) Receipt
PCTRO
Mar 17, 2016
Abstract
PCTRO
Mar 17, 2016
Claims
PCTRO
Mar 17, 2016
Description
PCTRO
Mar 17, 2016
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Drawings
PCTRO
Mar 17, 2016