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The patent EP3239435 was granted to Schiedel on Sep 3, 2025. The application was filed on Mar 2, 2017 under application number EP17158903A. 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 |
|---|---|---|---|
| ERLUS | Mar 2, 2022 | LOUIS POHLAU LOHRENTZ | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CH470558 |
| OPPOSITION | DE10025138 |
| OPPOSITION | DE10112195 |
| OPPOSITION | DE102005031321 |
| OPPOSITION | DE1299400 |
| OPPOSITION | DE20300312U |
| OPPOSITION | DE2213213 |
| OPPOSITION | DE2710975 |
| OPPOSITION | DE29913262U |
| OPPOSITION | DE3413192 |
| OPPOSITION | EP0026945 |
| OPPOSITION | EP1108829 |
| OPPOSITION | FR1175631 |
| OPPOSITION | FR2398030 |
| OPPOSITION | FR2785604 |
| OPPOSITION | FR2805533 |
| OPPOSITION | US4963191 |
| OPPOSITION | WO2014096701 |
| OPPOSITION | WO2015181479 |
| SEARCH | CH470558 |
| SEARCH | DE10025138 |
| SEARCH | DE102005031321 |
| SEARCH | DE1299400 |
| SEARCH | DE20300312U |
| SEARCH | DE2213213 |
| SEARCH | DE2710975 |
| SEARCH | DE29913262U |
| SEARCH | DE3413192 |
| SEARCH | EP0026945 |
| SEARCH | FR1175631 |
| SEARCH | FR2398030 |
| SEARCH | FR2785604 |
| SEARCH | FR2805533 |
| SEARCH | US4963191 |
| SEARCH | WO2014096701 |
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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Aug 7, 2025
Aug 7, 2025
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Refund of fees
Search/Exam
May 7, 2025
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Apr 17, 2025
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(Electronic) Receipt
Appeal
Apr 16, 2025
Apr 16, 2025
Withdrawal of an appeal
Appeal
Feb 18, 2025
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Feb 13, 2025
(Electronic) Receipt
Appeal
Feb 13, 2025
Notice of appeal
Appeal
Feb 13, 2025
Notice of appeal
Appeal
Dec 23, 2024
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OPPO
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Jun 15, 2021
May 7, 2021
Decision to grant a European patent
Search/Exam
Apr 27, 2021
(Electronic) Receipt
Search/Exam
Apr 27, 2021
English translation of the claims
Search/Exam
Apr 27, 2021
Filing of the translations of the claims
Search/Exam
Apr 27, 2021
French translation of claims
Search/Exam
Apr 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2021
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Feb 18, 2021
Intention to grant (signatures)
Search/Exam
Feb 18, 2021
Text intended for grant (clean copy)
Search/Exam
Feb 18, 2021
Dec 18, 2020
(Electronic) Receipt
Search/Exam
Dec 18, 2020
Amended claims with annotations
Search/Exam
Dec 18, 2020
Amended description with annotations
Search/Exam
Dec 18, 2020
Claims
Search/Exam
Dec 18, 2020
Description
Search/Exam
Dec 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2020
Dec 16, 2020
Annex to the communication
Search/Exam
Dec 16, 2020
Dec 16, 2020
Sep 22, 2020
Sep 9, 2020
(Electronic) Receipt
Search/Exam
Sep 9, 2020
Enquiry as to the processing of the file
Search/Exam
Sep 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2020
(Electronic) Receipt
Search/Exam
Jan 8, 2020
Amended claims with annotations
Search/Exam
Jan 8, 2020
Amended description with annotations
Search/Exam
Jan 8, 2020
Claims
Search/Exam
Jan 8, 2020
Description
Search/Exam
Jan 8, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2020
Oct 28, 2019
Oct 23, 2019
(Electronic) Receipt
Search/Exam
Oct 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2019
Jul 1, 2019
Annex to the communication
Search/Exam
Jul 1, 2019
Communication from the Examining Division
Search/Exam
Jun 24, 2019
Examination started
Search/Exam
Nov 12, 2018
Oct 30, 2018
(Electronic) Receipt
Search/Exam
Oct 30, 2018
Enquiry as to the processing of the file
Search/Exam
Oct 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2018
(Electronic) Receipt
Search/Exam
Apr 30, 2018
Apr 30, 2018
Amended claims with annotations
Search/Exam
Apr 30, 2018
Amendments received before examination
Search/Exam
Apr 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2018
Written request for examination
Search/Exam
Nov 6, 2017
Oct 5, 2017
Notification of forthcoming publication
Search/Exam
Sep 15, 2017
Sep 15, 2017
European search opinion
Search/Exam
Sep 15, 2017
European search report
Search/Exam
Sep 15, 2017
Information on Search Strategy
Search/Exam
Sep 4, 2017
Search started
Search/Exam
May 9, 2017
Communication to designated inventor
Search/Exam
May 2, 2017
(Electronic) Receipt
Search/Exam
May 2, 2017
Letter accompanying subsequently filed items
Search/Exam
May 2, 2017
Letter concerning the inventor
Search/Exam
May 2, 2017
Note on telephone consultation
Search/Exam
Apr 25, 2017
Communication to designated inventor
Search/Exam
Apr 25, 2017
Communication to designated inventor
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Apr 25, 2017
Communication to designated inventor
Search/Exam
Mar 16, 2017
Letter concerning the priority
Search/Exam
Mar 16, 2017
Priority document
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Mar 2, 2017
(Electronic) Receipt
Search/Exam
Mar 2, 2017
Abstract
Search/Exam
Mar 2, 2017
Mar 2, 2017
Claims
Search/Exam
Mar 2, 2017
Description
Search/Exam
Mar 2, 2017
Designation of inventor
Search/Exam
Mar 2, 2017
Drawings
Search/Exam
Mar 2, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2017
Matter concerning the application
Search/Exam
Mar 2, 2017
Priority search results
Search/Exam
Mar 2, 2017
Request for grant of a European patent
Search/Exam