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The patent EP3674729 was granted to Japan Tobacco on Oct 15, 2025. The application was originally filed on Dec 27, 2019 under application number EP19219826A. 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 |
|---|---|---|---|
| IMPERIAL TOBACCO | Feb 27, 2023 | MEWBURN ELLIS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2017514463 |
| OPPOSITION | EP3207811 |
| OPPOSITION | EP3646741 |
| OPPOSITION | US2010194398 |
| OPPOSITION | US2016143359 |
| OPPOSITION | US2016377667 |
| OPPOSITION | US2017027234 |
| OPPOSITION | US2018196107 |
| OPPOSITION | WO2014150247 |
| OPPOSITION | WO2017072705 |
| SEARCH | US2010194398 |
| SEARCH | US2016143359 |
| SEARCH | US2016377667 |
| SEARCH | US2017027234 |
| SEARCH | US2018196107 |
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 18, 2025
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Refund of fees
Appeal
Jun 27, 2025
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(Electronic) Receipt
Appeal
Jun 24, 2025
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Withdrawal of an appeal
Appeal
Apr 2, 2025
Refund of fees
Appeal
Apr 1, 2025
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Mar 25, 2025
(Electronic) Receipt
Appeal
Mar 25, 2025
Mar 25, 2025
Withdrawal of an appeal
Appeal
Mar 24, 2025
(Electronic) Receipt
Appeal
Mar 24, 2025
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(Electronic) Receipt
Appeal
Jan 24, 2025
(Electronic) Receipt
Appeal
Jan 24, 2025
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Notice of appeal
Appeal
Jan 24, 2025
Notice of appeal
Appeal
Nov 25, 2024
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Apr 22, 2022
(Electronic) Receipt
Search/Exam
Apr 22, 2022
Filing of the translations of the claims
Search/Exam
Apr 22, 2022
French translation of claims
Search/Exam
Apr 22, 2022
German translation of the claims
Search/Exam
Apr 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2021
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Intention to grant (signatures)
Search/Exam
Dec 22, 2021
Text intended for grant (clean copy)
Search/Exam
Dec 22, 2021
Oct 27, 2021
(Electronic) Receipt
Search/Exam
Oct 27, 2021
Amended description with annotations
Search/Exam
Oct 27, 2021
Description
Search/Exam
Oct 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 27, 2021
Jun 17, 2021
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Intention to grant (signatures)
Search/Exam
Jun 17, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 17, 2021
Apr 13, 2021
(Electronic) Receipt
Search/Exam
Apr 13, 2021
Amended claims with annotations
Search/Exam
Apr 13, 2021
Claims
Search/Exam
Apr 13, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 13, 2021
Dec 11, 2020
Annex to the communication
Search/Exam
Dec 11, 2020
Communication from the Examining Division
Search/Exam
Oct 13, 2020
(Electronic) Receipt
Search/Exam
Oct 13, 2020
Amended claims with annotations
Search/Exam
Oct 13, 2020
Amended description with annotations
Search/Exam
Oct 13, 2020
Claims
Search/Exam
Oct 13, 2020
Description
Search/Exam
Oct 13, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 13, 2020
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Annex to the communication
Search/Exam
Jun 9, 2020
Communication from the Examining Division
Search/Exam
Jun 4, 2020
Notification of forthcoming publication
Search/Exam
May 18, 2020
May 18, 2020
European search report
Search/Exam
May 18, 2020
Information on Search Strategy
Search/Exam
May 8, 2020
Search started
Search/Exam
Mar 5, 2020
Feb 28, 2020
Feb 19, 2020
Communication to designated inventor
Search/Exam
Feb 19, 2020
Communication to designated inventor
Search/Exam
Feb 19, 2020
Communication to designated inventor
Search/Exam
Dec 27, 2019
Abstract
Search/Exam
Dec 27, 2019
Dec 27, 2019
Claims
Search/Exam
Dec 27, 2019
Description
Search/Exam
Dec 27, 2019
Designation of inventor
Search/Exam
Dec 27, 2019
Drawings
Search/Exam
Dec 27, 2019
Request for grant of a European patent
Search/Exam