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The patent EP3255116 was granted to The Chemours FC on Apr 17, 2024. The application was filed on Mar 3, 2006 under application number EP17179485A. 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 |
|---|---|---|---|
| MEXICHEM FLUOR DE CV | Apr 9, 2020 | POTTER CLARKSON | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20040910495 |
| DESCRIPTION | US20050062044 |
| DESCRIPTION | US5759430 |
| DESCRIPTION | USRE36951E |
| OPPOSITION | JPH04110388 |
| OPPOSITION | US2004256594 |
| OPPOSITION | US6150306 |
| OPPOSITION | US6516837 |
| OPPOSITION | WO2004037913 |
| OPPOSITION | WO2005103190 |
| OPPOSITION | WO2005105947 |
| SEARCH | JPH04110388 |
| SEARCH | US2004089839 |
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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Mar 21, 2024
Mar 12, 2024
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Refund of fees
Search/Exam
Dec 15, 2023
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Dec 7, 2023
(Electronic) Receipt
Appeal
Dec 7, 2023
Dec 7, 2023
Withdrawal of an appeal
Appeal
Oct 31, 2023
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Sep 26, 2023
Refund of fees
Appeal
Sep 18, 2023
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(Electronic) Receipt
Appeal
Sep 14, 2023
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(Electronic) Receipt
Appeal
Sep 13, 2023
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Withdrawal of an appeal
Appeal
Jun 21, 2023
Advice of delivery
Appeal
Jun 19, 2023
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Apr 17, 2023
(Electronic) Receipt
Appeal
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Appeal
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Reply to appeal
Appeal
Nov 24, 2022
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
May 5, 2022
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Notice of appeal
Appeal
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Appeal
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Jul 22, 2019
Jun 14, 2019
Decision to grant a European patent
Search/Exam
May 27, 2019
(Electronic) Receipt
Search/Exam
May 27, 2019
Filing of the translations of the claims
Search/Exam
May 27, 2019
French translation of claims
Search/Exam
May 27, 2019
German translation of the claims
Search/Exam
May 27, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 29, 2019
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Intention to grant (signatures)
Search/Exam
Jan 29, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 29, 2019
Dec 6, 2018
Amended claims with annotations
Search/Exam
Dec 6, 2018
Amended description with annotations
Search/Exam
Dec 6, 2018
Claims
Search/Exam
Dec 6, 2018
Description
Search/Exam
Dec 6, 2018
Oct 15, 2018
Annex to the communication
Search/Exam
Oct 15, 2018
Communication from the Examining Division
Search/Exam
Oct 9, 2018
Examination started
Search/Exam
Apr 5, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Dec 18, 2017
Nov 15, 2017
Notification of forthcoming publication
Search/Exam
Oct 13, 2017
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European search opinion
Search/Exam
Oct 13, 2017
European search report
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Oct 13, 2017
Information on Search Strategy
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Aug 25, 2017
Communication to designated inventor
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Aug 25, 2017
Communication to designated inventor
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Jul 4, 2017
Abstract
Search/Exam
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Claims
Search/Exam
Jul 4, 2017
Description
Search/Exam
Jul 4, 2017
Designation of inventor
Search/Exam
Jul 4, 2017
Request for grant of a European patent
Search/Exam
Sep 27, 2006
Sep 27, 2006
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