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The patent EP3638501 was granted to Gambini on May 22, 2024. The application was filed on Jun 13, 2018 under application number EP18737992A. 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 |
|---|---|---|---|
| PAPER CONVERTING MACHINE | Feb 15, 2022 | SCHROER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP3037253 |
| INTERNATIONAL-SEARCH-REPORT | JP2015074098 |
| INTERNATIONAL-SEARCH-REPORT | US1964312 |
| INTERNATIONAL-SEARCH-REPORT | US2006243383 |
| INTERNATIONAL-SEARCH-REPORT | US2009126885 |
| INTERNATIONAL-SEARCH-REPORT | US2009134534 |
| INTERNATIONAL-SEARCH-REPORT | US2011020605 |
| INTERNATIONAL-SEARCH-REPORT | US2018244 |
| INTERNATIONAL-SEARCH-REPORT | US2091572 |
| INTERNATIONAL-SEARCH-REPORT | US5007271 |
| INTERNATIONAL-SEARCH-REPORT | US5862750 |
| OPPOSITION | JP2007015379 |
| OPPOSITION | JP2012110407 |
| OPPOSITION | US6913673 |
| OPPOSITION | WO2006133389 |
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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OPPO
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Decision to grant a European patent
Search/Exam
Apr 19, 2021
(Electronic) Receipt
Search/Exam
Apr 19, 2021
Filing of the translations of the claims
Search/Exam
Apr 19, 2021
French translation of claims
Search/Exam
Apr 19, 2021
German translation of the claims
Search/Exam
Apr 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2020
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Intention to grant (signatures)
Search/Exam
Dec 22, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 22, 2020
Nov 27, 2020
Examination started
Search/Exam
Jul 17, 2020
(Electronic) Receipt
Search/Exam
Jul 17, 2020
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Amended claims with annotations
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Amended description with annotations
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Amended description with annotations
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Amended description with annotations
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Jul 17, 2020
Amendments received before examination
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Jul 17, 2020
Letter accompanying subsequently filed items
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Jan 3, 2020
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(Electronic) Receipt
Search/Exam
Nov 14, 2019
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Request for entry into the European phase
Search/Exam
Nov 14, 2019
Submission concerning representation
Search/Exam
Oct 25, 2019
Information on entry into European phase
Search/Exam
Jan 10, 2019
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Copy of the international search report
Search/Exam
Dec 20, 2018
Published international application - A1
Search/Exam
Nov 30, 2018
ISR: cited documents
PCTISA
Nov 29, 2018
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(Electronic) Receipt
PCTISA
Oct 9, 2018
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Abstract
PCTISA
Jul 14, 2018
Claims
PCTISA
Jul 14, 2018
Description
PCTISA
Jul 14, 2018
Drawings
PCTISA
Jul 14, 2018
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Priority search results copy provided by EPO
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