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The patent EP3712184 was granted to MKT Metall Kunststoff Technik on Apr 26, 2023. The application was filed on Mar 13, 2020 under application number EP20163055A. 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 |
|---|---|---|---|
| FISCHERWERKE | Jan 24, 2024 | MAUCHER JENKINS PATENT UND RECHTSANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102014103920 |
| DESCRIPTION | EP2640675 |
| DESCRIPTION | WO2011072789 |
| DESCRIPTION | WO2015000807 |
| DESCRIPTION | WO2016000807 |
| EXAMINATION | WO2020007820 |
| OPPOSITION | CN108264858 |
| OPPOSITION | DE102014103920 |
| OPPOSITION | DE102018116179 |
| OPPOSITION | DE69434089T |
| OPPOSITION | EP0199671 |
| OPPOSITION | EP0432087 |
| OPPOSITION | EP2640675 |
| OPPOSITION | EP2985318 |
| OPPOSITION | EP3299351 |
| OPPOSITION | US3538011 |
| OPPOSITION | US6583259 |
| OPPOSITION | WO0029498 |
| OPPOSITION | WO02079293 |
| OPPOSITION | WO2011072789 |
| OPPOSITION | WO2012065878 |
| OPPOSITION | WO2016000807 |
| OPPOSITION | WO2020007820 |
| OPPOSITION | WO9833770 |
| SEARCH | CN108264858 |
| SEARCH | EP2985318 |
| SEARCH | EP3299351 |
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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Description
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Sep 25, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Mar 30, 2023
Decision to grant a European patent
Search/Exam
Jan 30, 2023
(Electronic) Receipt
Search/Exam
Jan 30, 2023
English translation of the claims
Search/Exam
Jan 30, 2023
Filing of the translations of the claims
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Jan 30, 2023
French translation of claims
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Jan 30, 2023
Letter accompanying subsequently filed items
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Jan 13, 2023
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Intention to grant (signatures)
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Jan 13, 2023
Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Nov 25, 2022
Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Nov 7, 2022
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Mar 23, 2021
(Electronic) Receipt
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Mar 23, 2021
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Amended claims with annotations
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Mar 23, 2021
Amendments received before examination
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Mar 23, 2021
Letter accompanying subsequently filed items
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Sep 28, 2020
Aug 26, 2020
Notification of forthcoming publication
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Jul 23, 2020
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European search opinion
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Jul 23, 2020
European search report
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Jul 23, 2020
Information on Search Strategy
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Jul 15, 2020
Search started
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Jun 10, 2020
Communication to designated inventor
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Jun 10, 2020
Communication to designated inventor
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Jun 4, 2020
(Electronic) Receipt
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Jun 4, 2020
Designation of inventor
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Jun 4, 2020
Letter accompanying subsequently filed items
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Jun 4, 2020
Letter concerning the inventor
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May 12, 2020
Deficiency in designation of inventor
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Mar 20, 2020
Letter concerning the priority
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Mar 20, 2020
Priority document
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Mar 13, 2020
Abstract
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Mar 13, 2020
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Claims
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Mar 13, 2020
Description
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Mar 13, 2020
Priority search results
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Mar 13, 2020
Request for grant of a European patent
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