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The patent EP3981899 was granted to Kabushiki Kaisha Toyota Jidoshokki on Aug 2, 2023. The application was filed on Sep 14, 2021 under application number EP21196482A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| PICANOL | Apr 29, 2024 | PATENTANWALTE RUFF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH0586544B |
| OPPOSITION | BE1024804 |
| OPPOSITION | CN102493104 |
| OPPOSITION | CN209816399U |
| OPPOSITION | CS273706 |
| OPPOSITION | JP2000355850 |
| OPPOSITION | JPH01168942 |
| OPPOSITION | US4369817 |
| OPPOSITION | WO2010046092 |
| SEARCH | BE1024804 |
| SEARCH | US4735237 |
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
Jun 26, 2023
(Electronic) Receipt
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Jun 26, 2023
French translation of claims
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Jun 26, 2023
German translation of the claims
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Jun 26, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Mar 30, 2023
Text intended for grant (clean copy)
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Mar 30, 2023
Feb 24, 2023
Examination started
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Sep 9, 2022
(Electronic) Receipt
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Sep 9, 2022
Letter accompanying subsequently filed items
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Sep 9, 2022
Maintenance of the application
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Apr 20, 2022
Mar 16, 2022
Notification of forthcoming publication
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Feb 25, 2022
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European search opinion
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Feb 25, 2022
European search report
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Feb 25, 2022
Information on Search Strategy
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Feb 2, 2022
Search started
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Sep 17, 2021
Sep 14, 2021
Abstract
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Sep 14, 2021
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Description
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Sep 14, 2021
Designation of inventor
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Sep 14, 2021
Drawings
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Sep 14, 2021
Request for grant of a European patent
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