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The patent EP3325684 was granted to Salzgitter Flachstahl on Mar 4, 2020. The application was filed on Jul 13, 2016 under application number EP16741898A. 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 |
|---|---|---|---|
| BIENERT | Dec 2, 2020 | WAGNER & GEYER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1621645 |
| INTERNATIONAL-SEARCH-REPORT | EP2020451 |
| INTERNATIONAL-SEARCH-REPORT | EP2703515 |
| INTERNATIONAL-SEARCH-REPORT | JP2003321739 |
| OPPOSITION | CN103361588 |
| OPPOSITION | CN106119699 |
| OPPOSITION | EP1621645 |
| OPPOSITION | EP2020451 |
| OPPOSITION | EP2692894 |
| OPPOSITION | JP2009019265 |
| OPPOSITION | KR20120012811 |
| OPPOSITION | WO2014132968 |
| OTHER | EP1621645 |
| OTHER | EP2801637 |
| OTHER | EP2998414 |
| OTHER | JP2009019265 |
| OTHER | JP2009030159 |
| OTHER | JP2009263718 |
| OTHER | WO2014185405 |
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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Feb 14, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Nov 29, 2024
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Oct 23, 2024
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Sep 5, 2024
(Electronic) Receipt
Appeal
Sep 5, 2024
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Nov 17, 2023
(Electronic) Receipt
Appeal
Nov 17, 2023
Nov 10, 2023
Advice of delivery
Appeal
Nov 7, 2023
Advice of delivery
Appeal
Nov 7, 2023
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Nov 2, 2023
(Electronic) Receipt
Appeal
Nov 2, 2023
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Feb 1, 2023
Jan 26, 2023
(Electronic) Receipt
Appeal
Jan 26, 2023
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Dec 2, 2022
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Nov 25, 2022
(Electronic) Receipt
Appeal
Nov 25, 2022
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Notice of appeal
Appeal
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OPPO
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Mar 16, 2020
Feb 6, 2020
Decision to grant a European patent
Search/Exam
Jan 23, 2020
(Electronic) Receipt
Search/Exam
Jan 23, 2020
English translation of the claims
Search/Exam
Jan 23, 2020
French translation of claims
Search/Exam
Jan 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 21, 2019
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Intention to grant (signatures)
Search/Exam
Oct 21, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 21, 2019
Jul 31, 2019
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Jul 16, 2019
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Observations by third parties
Search/Exam
Jul 16, 2019
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May 13, 2019
(Electronic) Receipt
Search/Exam
May 13, 2019
Amended claims with annotations
Search/Exam
May 13, 2019
Claims
Search/Exam
May 13, 2019
Letter accompanying subsequently filed items
Search/Exam
May 13, 2019
Jan 25, 2019
Annex to the communication
Search/Exam
Jan 25, 2019
Communication from the Examining Division
Search/Exam
Jan 21, 2019
Examination started
Search/Exam
Oct 25, 2018
Priority search results
Search/Exam
Oct 16, 2018
May 3, 2018
(Electronic) Receipt
Search/Exam
May 3, 2018
May 3, 2018
Amended claims with annotations
Search/Exam
May 3, 2018
May 3, 2018
Amended description with annotations
Search/Exam
May 3, 2018
Amendments received before examination
Search/Exam
May 3, 2018
Letter accompanying subsequently filed items
Search/Exam
May 3, 2018
Feb 23, 2018
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 5, 2018
Jan 31, 2018
(Electronic) Receipt
Search/Exam
Jan 31, 2018
Priority search results
Search/Exam
Jan 31, 2018
Request for entry into the European phase
Search/Exam
Dec 4, 2017
Information on entry into European phase
Search/Exam
Feb 14, 2017
Feb 14, 2017
Jan 26, 2017
Copy of the international search report
Search/Exam
Jan 26, 2017
Copy of the international search report
Search/Exam
Jan 26, 2017
Published international application - A1
Search/Exam
Sep 6, 2016
Sep 6, 2016
Sep 6, 2016
Aug 23, 2016
Aug 3, 2016
Jul 13, 2016
(Electronic) Receipt
PCTRO
Jul 13, 2016
Abstract
PCTRO
Jul 13, 2016
Claims
PCTRO
Jul 13, 2016
Description
PCTRO
Jul 13, 2016
Jul 13, 2016