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The patent EP3294851 was granted to Margildi EHF on Nov 13, 2024. The application was originally filed on May 13, 2016 under application number EP16763331A. 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 |
|---|---|---|---|
| INSPICOS PS | Nov 17, 2021 | INSPICOS PS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0651046 |
| INTERNATIONAL-SEARCH-REPORT | GB555570 |
| INTERNATIONAL-SEARCH-REPORT | US2435626 |
| OPPOSITION | EP0651046 |
| OPPOSITION | GB2048928 |
| OPPOSITION | JPH0331397 |
| OPPOSITION | US2520801 |
| OPPOSITION | US2678937 |
| OPPOSITION | US4623488 |
| OPPOSITION | US8772518 |
| OPPOSITION | WO9526391 |
| OPPOSITION | WO9620266 |
| OPPOSITION | WO9631581 |
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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Decision to grant a European patent
Search/Exam
Jan 6, 2021
(Electronic) Receipt
Search/Exam
Jan 6, 2021
Filing of the translations of the claims
Search/Exam
Jan 6, 2021
French translation of claims
Search/Exam
Jan 6, 2021
German translation of the claims
Search/Exam
Jan 6, 2021
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Aug 27, 2020
Text intended for grant (clean copy)
Search/Exam
Aug 27, 2020
Jun 7, 2019
(Electronic) Receipt
Search/Exam
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Amended claims with annotations
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Amended description with annotations
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Claims
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Description
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Annex to the communication
Search/Exam
Nov 28, 2018
Communication from the Examining Division
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Nov 22, 2018
Examination started
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Sep 17, 2018
(Electronic) Receipt
Search/Exam
Sep 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 17, 2018
Priority search results
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(Electronic) Receipt
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Amended claims with annotations
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Jul 20, 2018
Amendments received before examination
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Letter accompanying subsequently filed items
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Communication to designated inventor
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Dec 8, 2017
(Electronic) Receipt
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Dec 8, 2017
Request for entry into the European phase
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Nov 27, 2017
Nov 24, 2017
Information on entry into European phase
Search/Exam
Feb 7, 2017
Jan 19, 2017
Copy of the international search report
Search/Exam
Jan 19, 2017
Published international application - A1
Search/Exam
Oct 21, 2016
ISR: cited documents
PCTISA
Oct 17, 2016
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Abstract
PCTISA
May 13, 2016
Claims
PCTISA
May 13, 2016
Description
PCTISA
May 13, 2016
Drawings
PCTISA