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The patent EP3388477 was granted to Armacell Enterprise on Nov 20, 2019. The application was originally filed on Apr 11, 2017 under application number EP17166016A. 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 |
|---|---|---|---|
| KAIMANN | Aug 19, 2020 | HOFFMANN EITLE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN104945746 |
| DESCRIPTION | US2010065173 |
| DESCRIPTION | US8353130 |
| OPPOSITION | CN102964621 |
| OPPOSITION | CN104140575 |
| OPPOSITION | EP1683827 |
| OPPOSITION | EP2824134 |
| OPPOSITION | EP2921475 |
| OPPOSITION | EP2921476 |
| OPPOSITION | EP3006491 |
| OPPOSITION | GB2314841 |
| OPPOSITION | GB2474574 |
| OPPOSITION | US2004097605 |
| OPPOSITION | US2012135221 |
| OPPOSITION | US2015197612 |
| SEARCH | EP2921475 |
| SEARCH | JP2003211481 |
| SEARCH | JP2007217662 |
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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Dec 2, 2019
Oct 24, 2019
Decision to grant a European patent
Search/Exam
Oct 14, 2019
(Electronic) Receipt
Search/Exam
Oct 14, 2019
Filing of the translations of the claims
Search/Exam
Oct 14, 2019
French translation of claims
Search/Exam
Oct 14, 2019
German translation of the claims
Search/Exam
Oct 14, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2019
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Intention to grant (signatures)
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Jun 21, 2019
Text intended for grant (clean copy)
Search/Exam
Jun 21, 2019
May 20, 2019
Examination started
Search/Exam
Apr 15, 2019
(Electronic) Receipt
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended description with annotations
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Apr 15, 2019
Amendments received before examination
Search/Exam
Apr 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 22, 2018
Sep 19, 2018
Notification of forthcoming publication
Search/Exam
Oct 26, 2017
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European search opinion
Search/Exam
Oct 26, 2017
European search report
Search/Exam
Oct 26, 2017
Information on Search Strategy
Search/Exam
Oct 9, 2017
Search started
Search/Exam
Jun 2, 2017
Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Apr 11, 2017
Abstract
Search/Exam
Apr 11, 2017
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Claims
Search/Exam
Apr 11, 2017
Description
Search/Exam
Apr 11, 2017
Designation of inventor
Search/Exam
Apr 11, 2017
Request for grant of a European patent
Search/Exam