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The patent EP3661374 was granted to Zumex Group on Mar 24, 2021. The application was filed on Jul 23, 2018 under application number EP18745889A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| CITROCASA | Dec 21, 2021 | HUBSCHER & PARTNER PATENTANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | ES173641U |
| DESCRIPTION | ES2008438 |
| DESCRIPTION | ES2284294 |
| DESCRIPTION | ES2527974 |
| DESCRIPTION | ES342448 |
| INTERNATIONAL-SEARCH-REPORT | BE713716 |
| INTERNATIONAL-SEARCH-REPORT | CN106490952 |
| INTERNATIONAL-SEARCH-REPORT | US2630849 |
| INTERNATIONAL-SEARCH-REPORT | US2707981 |
| INTERNATIONAL-SEARCH-REPORT | WO2005041732 |
| OPPOSITION | EP0882410 |
| OPPOSITION | ES2008438 |
| OPPOSITION | US2602479 |
| OPPOSITION | US2707981 |
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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OPPO
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Feb 25, 2021
Decision to grant a European patent
Search/Exam
Feb 12, 2021
(Electronic) Receipt
Search/Exam
Feb 12, 2021
Annex
Search/Exam
Feb 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 11, 2021
(Electronic) Receipt
Search/Exam
Feb 11, 2021
Filing of the translations of the claims
Search/Exam
Feb 11, 2021
French translation of claims
Search/Exam
Feb 11, 2021
German translation of the claims
Search/Exam
Feb 11, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2020
Oct 16, 2020
Oct 16, 2020
Intention to grant (signatures)
Search/Exam
Oct 16, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 16, 2020
Sep 23, 2020
Communication to designated inventor
Search/Exam
Sep 21, 2020
Examination started
Search/Exam
Sep 15, 2020
(Electronic) Receipt
Search/Exam
Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
Letter concerning the inventor
Search/Exam
Aug 5, 2020
Refund of fees
Search/Exam
Jul 24, 2020
(Electronic) Receipt
Search/Exam
Jul 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 24, 2020
Letter concerning fees and payments
Search/Exam
Jun 15, 2020
Jun 8, 2020
Letter which had not been notified
Search/Exam
May 13, 2020
Mar 6, 2020
Communication to designated inventor
Search/Exam
Feb 21, 2020
(Electronic) Receipt
Search/Exam
Feb 21, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2020
(Electronic) Receipt
Search/Exam
Feb 20, 2020
Request for entry into the European phase
Search/Exam
Feb 11, 2020
Feb 11, 2020
Dec 13, 2019
Information on entry into European phase
Search/Exam
Oct 15, 2019
Oct 15, 2019
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Aug 30, 2019
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Jul 2, 2019
Notification of election of EPO
Search/Exam
Jul 1, 2019
Written opinion
PCT2
Jul 1, 2019
Jul 1, 2019
Jun 6, 2019
May 31, 2019
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Annex
PCT2
May 31, 2019
May 31, 2019
PCT demand form
PCT2
May 31, 2019
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Feb 27, 2019
Feb 7, 2019
Copy of the international search report
Search/Exam
Feb 7, 2019
Published international application - A1
Search/Exam
Oct 15, 2018
ISR: cited documents
PCTISA
Oct 12, 2018
Oct 12, 2018
Oct 12, 2018
Aug 10, 2018
Aug 9, 2018
Aug 6, 2018
Aug 2, 2018
Jul 23, 2018
(Electronic) Receipt
PCTRO
Jul 23, 2018
Abstract
PCTRO
Jul 23, 2018
Annex
PCTRO
Jul 23, 2018
Claims
PCTRO
Jul 23, 2018
Description
PCTRO
Jul 23, 2018
Jul 23, 2018
Drawings
PCTRO
Jul 23, 2018