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The patent EP3445520 was granted to Hydro Aluminium Rolled Products on Aug 28, 2019. The application was filed on Jan 4, 2017 under application number EP17700063A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| C TEC CONSTELLIUM TECHNOLOGY CENTER CONSTELLIUM NEUF BRISACH | May 28, 2020 | CONSTELLIUM PROPRIETE INDUSTRIELLE | ADMISSIBLE |
| GRANGES | May 4, 2020 | VALEA | ADMISSIBLE |
| NOVELIS KOBLENZ | Mar 23, 2020 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP2039790 |
| INTERNATIONAL-SEARCH-REPORT | EP2090425 |
| OPPOSITION | EP0823305 |
| OPPOSITION | EP1247873 |
| OPPOSITION | EP3026134 |
| OPPOSITION | JP2001030092 |
| OPPOSITION | JP2003005572 |
| OPPOSITION | JP2003055727 |
| OPPOSITION | JP2005297016 |
| OPPOSITION | JPH0436434 |
| OPPOSITION | JPH09296243 |
| OPPOSITION | JPS60251243 |
| OPPOSITION | US2007286763 |
| OPPOSITION | US2014134458 |
| OPPOSITION | US5857266 |
| OPPOSITION | WO03089237 |
| OPPOSITION | WO2005095660 |
| OPPOSITION | WO2007042206 |
| OPPOSITION | WO2009090186 |
| OPPOSITION | WO2014017976 |
| OPPOSITION | WO2015132482 |
| OPPOSITION | WO2016015974 |
| OPPOSITION | WO2016134967 |
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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Appeal
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Claims
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
Feb 23, 2022
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Notice of appeal
Appeal
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Sep 9, 2019
Aug 1, 2019
Decision to grant a European patent
Search/Exam
Jul 16, 2019
(Electronic) Receipt
Search/Exam
Jul 16, 2019
English translation of the claims
Search/Exam
Jul 16, 2019
Filing of the translations of the claims
Search/Exam
Jul 16, 2019
French translation of claims
Search/Exam
Jul 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 22, 2019
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Intention to grant (signatures)
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Mar 22, 2019
Text intended for grant (clean copy)
Search/Exam
Mar 22, 2019
Feb 15, 2019
Examination started
Search/Exam
Jan 30, 2019
Nov 23, 2018
Communication to designated inventor
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Nov 23, 2018
Communication to designated inventor
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Nov 23, 2018
Communication to designated inventor
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Nov 23, 2018
Communication to designated inventor
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Nov 23, 2018
Communication to designated inventor
Search/Exam
Nov 23, 2018
Communication to designated inventor
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Nov 20, 2018
Priority search results copy provided by EPO
Search/Exam
Nov 7, 2018
Oct 12, 2018
(Electronic) Receipt
Search/Exam
Oct 12, 2018
Request for entry into the European phase
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Aug 31, 2018
Information on entry into European phase
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Jan 4, 2018
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Notification of the recording of a change
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Nov 13, 2017
Oct 26, 2017
Copy of the international search report
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Oct 26, 2017
Copy of the international search report
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Oct 26, 2017
Published international application - A1
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May 31, 2017
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ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Jan 4, 2017
Abstract
PCTRO
Jan 4, 2017
Claims
PCTRO
Jan 4, 2017
Description
PCTRO
Jan 4, 2017
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Drawings
PCTRO