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The patent EP3476996 was granted to Sanko Tekstil Isletmeleri SAN VE TIC on Oct 15, 2025. The application was filed on Oct 26, 2018 under application number EP18202976A. 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 |
|---|---|---|---|
| TROESCH SCHEIDEGGER WERNER | Jun 16, 2021 | SCHMID | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN102619088 |
| OPPOSITION | CN106087451 |
| OPPOSITION | EP0396344 |
| OPPOSITION | JPH09279483 |
| OPPOSITION | US4378431 |
| OPPOSITION | US5514737 |
| OPPOSITION | WO2014182536 |
| OPPOSITION | WO2016073453 |
| OPPOSITION | WO2017053433 |
| SEARCH | CN102619088 |
| SEARCH | CN106087451 |
| SEARCH | EP0396344 |
| SEARCH | JP2009102755 |
| SEARCH | US4378431 |
| SEARCH | US5514737 |
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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Sep 18, 2025
Sep 18, 2025
Sep 8, 2025
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Jun 26, 2025
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Refund of fees
Appeal
Jun 20, 2025
Jun 18, 2025
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Jun 16, 2025
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Jun 13, 2025
(Electronic) Receipt
Appeal
Jun 13, 2025
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Jun 13, 2025
Withdrawal of an appeal
Appeal
May 26, 2025
May 23, 2025
(Electronic) Receipt
Appeal
May 23, 2025
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Apr 14, 2025
Refund of fees
Appeal
Apr 9, 2025
Apr 7, 2025
(Electronic) Receipt
Appeal
Apr 7, 2025
Apr 7, 2025
Withdrawal of an appeal
Appeal
Apr 4, 2025
Apr 4, 2025
Sep 16, 2024
Sep 16, 2024
Sep 11, 2024
May 2, 2024
Nov 22, 2023
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Nov 16, 2023
(Electronic) Receipt
Appeal
Nov 16, 2023
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Reply to appeal
Appeal
Nov 15, 2023
(Electronic) Receipt
Appeal
Nov 15, 2023
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Reply to appeal
Appeal
Jul 6, 2023
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(Electronic) Receipt
Appeal
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Claims
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jun 13, 2023
Authorisation
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
May 4, 2023
May 4, 2023
Notice of appeal
Appeal
Apr 24, 2023
(Electronic) Receipt
Appeal
Apr 24, 2023
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Notice of appeal
Appeal
Mar 9, 2023
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Means of redress
OPPO
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Sep 28, 2020
Aug 20, 2020
Decision to grant a European patent
Search/Exam
Aug 11, 2020
(Electronic) Receipt
Search/Exam
Aug 11, 2020
Filing of the translations of the claims
Search/Exam
Aug 11, 2020
French translation of claims
Search/Exam
Aug 11, 2020
German translation of the claims
Search/Exam
Aug 11, 2020
Letter accompanying subsequently filed items
Search/Exam
May 27, 2020
May 27, 2020
May 27, 2020
Intention to grant (signatures)
Search/Exam
May 27, 2020
Text intended for grant (clean copy)
Search/Exam
May 27, 2020
Apr 2, 2020
Examination started
Search/Exam
Nov 4, 2019
(Electronic) Receipt
Search/Exam
Nov 4, 2019
Nov 4, 2019
Amended claims with annotations
Search/Exam
Nov 4, 2019
Amendments received before examination
Search/Exam
Nov 4, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 22, 2019
(Electronic) Receipt
Search/Exam
Oct 22, 2019
Letter accompanying subsequently filed items
Search/Exam
May 6, 2019
Apr 3, 2019
Notification of forthcoming publication
Search/Exam
Apr 3, 2019
Refund of fees
Search/Exam
Mar 29, 2019
Mar 29, 2019
European search opinion
Search/Exam
Mar 29, 2019
European search report
Search/Exam
Mar 29, 2019
Information on Search Strategy
Search/Exam
Mar 26, 2019
Priority search results copy provided by EPO
Search/Exam
Mar 11, 2019
Search started
Search/Exam
Jan 8, 2019
Dec 26, 2018
Dec 21, 2018
Communication to designated inventor
Search/Exam
Dec 21, 2018
Communication to designated inventor
Search/Exam
Dec 21, 2018
Communication to designated inventor
Search/Exam
Dec 21, 2018
Communication to designated inventor
Search/Exam
Dec 21, 2018
Communication to designated inventor
Search/Exam
Oct 29, 2018
(Electronic) Receipt
Search/Exam
Oct 29, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 26, 2018
Abstract
Search/Exam
Oct 26, 2018
Oct 26, 2018
Claims
Search/Exam
Oct 26, 2018
Description
Search/Exam
Oct 26, 2018
Designation of inventor
Search/Exam
Oct 26, 2018
Priority search results
Search/Exam
Oct 26, 2018
Request for grant of a European patent
Search/Exam