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The patent EP3899155 was granted to MAX Frank on Jan 29, 2025. The application was originally filed on Dec 20, 2019 under application number EP19898911A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2018071987 |
| INTERNATIONAL-SEARCH-REPORT | US4141190 |
| INTERNATIONAL-SEARCH-REPORT | US5653078 |
| INTERNATIONAL-SEARCH-REPORT | WO2018071987 |
| OPPOSITION | US4141190 |
| OPPOSITION | US5653078 |
| OPPOSITION | WO2018071987 |
| SEARCH | US4141190 |
| SEARCH | WO2018071987 |
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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Nov 12, 2025
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Feb 11, 2025
Jan 8, 2025
Decision to grant a European patent
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Nov 28, 2024
(Electronic) Receipt
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Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Filing of the translations of the claims
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Nov 28, 2024
Intention to grant (signatures)
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Nov 28, 2024
Letter accompanying subsequently filed items
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Nov 28, 2024
Text intended for grant (clean copy)
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Nov 28, 2024
Nov 19, 2024
(Electronic) Receipt
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Nov 19, 2024
Amended description with annotations
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Nov 19, 2024
Description
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Nov 19, 2024
French translation of claims
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Nov 19, 2024
German translation of the claims
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Nov 19, 2024
Letter accompanying subsequently filed items
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Nov 19, 2024
Oct 8, 2024
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Oct 8, 2024
Intention to grant (signatures)
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Oct 8, 2024
Text intended for grant (clean copy)
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Oct 8, 2024
Sep 25, 2024
Examination started
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Feb 26, 2024
Feb 20, 2024
Letter accompanying subsequently filed items
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Feb 20, 2024
Nov 28, 2022
(Electronic) Receipt
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Nov 28, 2022
Letter accompanying subsequently filed items
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Nov 28, 2022
Nov 15, 2022
Nov 3, 2022
(Electronic) Receipt
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Nov 3, 2022
Nov 3, 2022
Nov 3, 2022
Amendments received before examination
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Nov 3, 2022
Letter accompanying subsequently filed items
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Aug 22, 2022
Aug 2, 2022
Aug 2, 2022
European search opinion
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Aug 2, 2022
Information on Search Strategy
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Aug 2, 2022
Supplementary European search report
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Jul 22, 2022
Search started
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Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 19, 2021
(Electronic) Receipt
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Oct 19, 2021
Annexes in respect of a client data request
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Oct 19, 2021
General authorisation
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Oct 19, 2021
Letter accompanying subsequently filed items
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Oct 19, 2021
Oct 19, 2021
Jul 28, 2021
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May 31, 2021
Information regarding early processing
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May 19, 2021
(Electronic) Receipt
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May 19, 2021
May 19, 2021
Amended claims with annotations
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May 19, 2021
Request for entry into the European phase
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Apr 30, 2021
Information on entry into European phase
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Nov 6, 2020
Notification of election of EPO
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Jul 13, 2020
Jun 25, 2020
Copy of the international search report
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Jun 25, 2020
Published international application - A1
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