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The patent EP3303891 was granted to GEM Gebr Mller Apparatebau Kommanditgesellschaft on Apr 24, 2019. The application was filed on May 17, 2016 under application number EP16724612A. 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 |
|---|---|---|---|
| SISTO ARMATUREN | Jan 24, 2020 | BEHR | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102013214304 |
| INTERNATIONAL-SEARCH-REPORT | DE102013214304 |
| INTERNATIONAL-SEARCH-REPORT | EP2202496 |
| INTERNATIONAL-SEARCH-REPORT | US2008202606 |
| INTERNATIONAL-SEARCH-REPORT | US2014261740 |
| OPPOSITION | DE102013214304 |
| OPPOSITION | EP2202496 |
| OPPOSITION | EP2396548 |
| OPPOSITION | US2008202606 |
| OPPOSITION | US2015088434 |
| OPPOSITION | US5056046 |
| OPPOSITION | US6895130 |
| OPPOSITION | US7259675 |
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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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Advice of delivery
Appeal
May 4, 2023
Advice of delivery
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Oct 28, 2021
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 10, 2021
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Notice of appeal
Appeal
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Means of redress
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May 7, 2019
Mar 28, 2019
Decision to grant a European patent
Search/Exam
Mar 12, 2019
(Electronic) Receipt
Search/Exam
Mar 12, 2019
English translation of the claims
Search/Exam
Mar 12, 2019
Filing of the translations of the claims
Search/Exam
Mar 12, 2019
French translation of claims
Search/Exam
Mar 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 19, 2018
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Intention to grant (signatures)
Search/Exam
Dec 19, 2018
Text intended for grant (clean copy)
Search/Exam
Dec 19, 2018
Oct 4, 2018
Examination started
Search/Exam
Apr 27, 2018
(Electronic) Receipt
Search/Exam
Apr 27, 2018
Apr 27, 2018
Amended description with annotations
Search/Exam
Apr 27, 2018
Amendments received before examination
Search/Exam
Apr 27, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2018
Jan 23, 2018
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Dec 21, 2017
Nov 9, 2017
(Electronic) Receipt
Search/Exam
Nov 9, 2017
Priority search results
Search/Exam
Nov 9, 2017
Request for entry into the European phase
Search/Exam
Oct 13, 2017
Information on entry into European phase
Search/Exam
Jan 2, 2017
Dec 8, 2016
Copy of the international search report
Search/Exam
Dec 8, 2016
Copy of the international search report
Search/Exam
Dec 8, 2016
Published international application - A1
Search/Exam
Sep 28, 2016
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May 24, 2016
Annex
PCTRO
May 24, 2016
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May 17, 2016
(Electronic) Receipt
PCTRO
May 17, 2016
Abstract
PCTRO
May 17, 2016
Claims
PCTRO
May 17, 2016
Claims
Search/Exam
May 17, 2016
Description
PCTRO
May 17, 2016
May 17, 2016
Drawings
PCTRO
May 17, 2016