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The patent EP3251642 was granted to Daio Paper on Aug 26, 2020. The application was filed on Jan 29, 2016 under application number EP16743578A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| ESSITY HYGIENE AND HEALTH | May 19, 2021 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2004532758 |
| INTERNATIONAL-SEARCH-REPORT | JP2006198132 |
| INTERNATIONAL-SEARCH-REPORT | JP2008260131 |
| INTERNATIONAL-SEARCH-REPORT | JP2008296585 |
| INTERNATIONAL-SEARCH-REPORT | JP2010057567 |
| INTERNATIONAL-SEARCH-REPORT | JP2011115308 |
| INTERNATIONAL-SEARCH-REPORT | JP2014520589 |
| OPPOSITION | EP3203283 |
| OPPOSITION | WO2011080921 |
| OPPOSITION | WO2013002691 |
| OPPOSITION | WO2016052416 |
| OPPOSITION | WO9104724 |
| SEARCH | EP0217032 |
| SEARCH | EP2223796 |
| SEARCH | EP3202383 |
| SEARCH | EP3299161 |
| SEARCH | US2010168705 |
| SEARCH | WO2009138887 |
| SEARCH | WO2012036599 |
| SEARCH | WO2013002691 |
| SEARCH | WO2015168032 |
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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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 31, 2023
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(Electronic) Receipt
Appeal
Aug 10, 2023
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Reply to appeal
Appeal
Mar 31, 2023
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Mar 27, 2023
(Electronic) Receipt
Appeal
Mar 27, 2023
Mar 27, 2023
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Mar 24, 2023
Mar 20, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2023
Mar 10, 2023
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Feb 27, 2023
(Electronic) Receipt
Appeal
Feb 27, 2023
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Notice of appeal
Appeal
Jan 3, 2023
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Sep 7, 2020
Jul 30, 2020
Decision to grant a European patent
Search/Exam
Jul 16, 2020
(Electronic) Receipt
Search/Exam
Jul 16, 2020
Filing of the translations of the claims
Search/Exam
Jul 16, 2020
French translation of claims
Search/Exam
Jul 16, 2020
German translation of the claims
Search/Exam
Jul 16, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Intention to grant (signatures)
Search/Exam
Mar 6, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 6, 2020
Sep 16, 2019
(Electronic) Receipt
Search/Exam
Sep 16, 2019
Amended claims with annotations
Search/Exam
Sep 16, 2019
Amended description with annotations
Search/Exam
Sep 16, 2019
Claims
Search/Exam
Sep 16, 2019
Description
Search/Exam
Sep 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2019
Jun 6, 2019
Annex to the communication
Search/Exam
Jun 6, 2019
Communication from the Examining Division
Search/Exam
May 31, 2019
Examination started
Search/Exam
Apr 11, 2019
(Electronic) Receipt
Search/Exam
Apr 11, 2019
Apr 11, 2019
Amended claims with annotations
Search/Exam
Apr 11, 2019
Amendments received before examination
Search/Exam
Apr 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2018
Sep 28, 2018
Sep 28, 2018
European search opinion
Search/Exam
Sep 28, 2018
Information on Search Strategy
Search/Exam
Sep 28, 2018
Supplementary European search report
Search/Exam
Aug 24, 2018
(Electronic) Receipt
Search/Exam
Aug 24, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 24, 2018
Reply to invitation to pay additional fees
Search/Exam
Jun 20, 2018
Jun 20, 2018
Information on Search Strategy
Search/Exam
Jun 20, 2018
Partial European search report
Search/Exam
Jun 20, 2018
Jun 12, 2018
Search started
Search/Exam
Mar 16, 2018
(Electronic) Receipt
Search/Exam
Mar 16, 2018
Mar 16, 2018
Amended claims with annotations
Search/Exam
Mar 16, 2018
Amendments received before examination
Search/Exam
Mar 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2017
Notification of forthcoming publication
Search/Exam
Sep 6, 2017
Sep 4, 2017
Communication to designated inventor
Search/Exam
Aug 14, 2017
Aug 14, 2017
Aug 2, 2017
(Electronic) Receipt
Search/Exam
Aug 2, 2017
Abstract
Search/Exam
Aug 2, 2017
Claims
Search/Exam
Aug 2, 2017
Description
Search/Exam
Aug 2, 2017
Drawings
Search/Exam
Aug 2, 2017
Request for entry into the European phase
Search/Exam
Jun 9, 2017
Information on entry into European phase
Search/Exam
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