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The patent EP3082020 was granted to Panasonic Management on Aug 21, 2019. The application was filed on Mar 22, 2016 under application number EP16161498A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| THE PROCTER & GAMBLE | Jun 2, 2020 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2013027502 |
| OPPOSITION | EP1512502 |
| OPPOSITION | JP2006288892 |
| OPPOSITION | WO2007029162 |
| SEARCH | EP1512502 |
| SEARCH | JP2013027502 |
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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Jun 24, 2025
Refund of fees
Appeal
Jun 23, 2025
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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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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Dec 4, 2024
(Electronic) Receipt
Appeal
Dec 4, 2024
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Claims
Appeal
Dec 4, 2024
Claims
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jun 25, 2024
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Sep 2, 2019
Jul 25, 2019
Decision to grant a European patent
Search/Exam
Jul 15, 2019
(Electronic) Receipt
Search/Exam
Jul 15, 2019
French translation of claims
Search/Exam
Jul 15, 2019
German translation of the claims
Search/Exam
Jul 15, 2019
Letter accompanying subsequently filed items
Search/Exam
May 9, 2019
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Intention to grant (signatures)
Search/Exam
May 9, 2019
Text intended for grant (clean copy)
Search/Exam
May 9, 2019
Mar 29, 2019
Examination started
Search/Exam
Apr 7, 2017
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Amended claims with annotations
Search/Exam
Apr 7, 2017
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Amended description with annotations
Search/Exam
Apr 7, 2017
Amendments received before examination
Search/Exam
Apr 7, 2017
Payment of fees and costs
Search/Exam
Oct 24, 2016
Sep 21, 2016
Notification of forthcoming publication
Search/Exam
Sep 19, 2016
Sep 19, 2016
European search opinion
Search/Exam
Sep 19, 2016
European search report
Search/Exam
Sep 19, 2016
Information on Search Strategy
Search/Exam
Sep 7, 2016
Search started
Search/Exam
May 31, 2016
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
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May 13, 2016
Communication to designated inventor
Search/Exam
Mar 22, 2016
Abstract
Search/Exam
Mar 22, 2016
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Claims
Search/Exam
Mar 22, 2016
Description
Search/Exam
Mar 22, 2016
Designation of inventor
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Mar 22, 2016
Drawings
Search/Exam
Mar 22, 2016
Request for grant of a European patent
Search/Exam