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The patent EP2449142 was granted to Constellium France on May 3, 2017. The application was filed on Jun 22, 2010 under application number EP10734173A. 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 |
|---|---|---|---|
| HOWMET AEROSPACE | Feb 5, 2018 | LENZING GERBER STUTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2009142222 |
| DESCRIPTION | US5032359 |
| DESCRIPTION | US5234662 |
| DESCRIPTION | US5455003 |
| DESCRIPTION | US7229509 |
| DESCRIPTION | US7438772 |
| INTERNATIONAL-SEARCH-REPORT | EP2110453 |
| INTERNATIONAL-SEARCH-REPORT | US2004071586 |
| INTERNATIONAL-SEARCH-REPORT | US2005006008 |
| INTERNATIONAL-SEARCH-REPORT | US4999061 |
| INTERNATIONAL-SEARCH-REPORT | WO2004106570 |
| INTERNATIONAL-SEARCH-REPORT | WO2006131627 |
| INTERNATIONAL-SEARCH-REPORT | WO2009036953 |
| INTERNATIONAL-SEARCH-REPORT | WO9504837 |
| INTERNATIONAL-SEARCH-REPORT | WO9532074 |
| OPPOSITION | US5389165 |
| OPPOSITION | WO2009036953 |
| OPPOSITION | WO9504837 |
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 7, 2022
Sep 21, 2022
Advice of delivery
Appeal
Sep 15, 2022
Sep 15, 2022
Sep 15, 2022
Jul 14, 2022
Jul 14, 2022
Jul 14, 2022
Jun 23, 2022
Advice of delivery
Appeal
Jun 21, 2022
Jun 21, 2022
Jun 21, 2022
Jun 21, 2022
Jun 20, 2022
Jun 20, 2022
Jun 10, 2022
Jun 8, 2022
(Electronic) Receipt
Appeal
Jun 8, 2022
(Electronic) Receipt
Appeal
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Mar 14, 2022
Mar 14, 2022
Oct 1, 2021
Advice of delivery
Appeal
Sep 27, 2021
Advice of delivery
Appeal
Sep 21, 2021
Sep 21, 2021
Sep 16, 2021
Oct 21, 2020
Oct 21, 2020
Sep 22, 2020
Sep 17, 2020
(Electronic) Receipt
Appeal
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Reply to appeal
Appeal
May 8, 2020
Apr 30, 2020
(Electronic) Receipt
Appeal
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 30, 2020
Apr 20, 2020
(Electronic) Receipt
Appeal
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Feb 27, 2020
Feb 27, 2020
Feb 20, 2020
(Electronic) Receipt
Appeal
Feb 20, 2020
Feb 20, 2020
Notice of appeal
Appeal
Dec 16, 2019
Dec 13, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Means of redress
OPPO
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Sep 30, 2019
Sep 30, 2019
Sep 30, 2019
Sep 25, 2019
General enquiry
OPPO
May 21, 2019
Apr 17, 2019
Apr 10, 2019
Mar 27, 2019
Mar 25, 2019
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Mar 19, 2019
Mar 19, 2019
Mar 19, 2019
Description
OPPO
Mar 19, 2019
Mar 19, 2019
Mar 15, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Oct 30, 2018
Oct 25, 2018
Oct 25, 2018
Oct 23, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Jun 12, 2018
Jun 6, 2018
Jun 6, 2018
Jun 6, 2018
Jun 6, 2018
Jun 6, 2018
Claims
OPPO
Jun 6, 2018
Claims
OPPO
Jun 6, 2018
Claims
OPPO
Jun 6, 2018
Jun 6, 2018
Jun 6, 2018
Feb 22, 2018
Feb 16, 2018
Feb 16, 2018
Feb 16, 2018
Feb 16, 2018
Feb 14, 2018
Feb 14, 2018
Feb 9, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
May 3, 2017
Apr 6, 2017
Decision to grant a European patent
Search/Exam
Mar 27, 2017
CDS Clean up - amended applicant details
Search/Exam
Mar 23, 2017
(Electronic) Receipt
Search/Exam
Mar 23, 2017
English translation of the claims
Search/Exam
Mar 23, 2017
Filing of the translations of the claims
Search/Exam
Mar 23, 2017
German translation of the claims
Search/Exam
Mar 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 30, 2016
Nov 30, 2016
Nov 30, 2016
Intention to grant (signatures)
Search/Exam
Nov 30, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 30, 2016
Mar 9, 2016
Feb 18, 2016
May 6, 2015
(Electronic) Receipt
Search/Exam
May 6, 2015
Amended claims with annotations
Search/Exam
May 6, 2015
Amended description with annotations
Search/Exam
May 6, 2015
Claims
Search/Exam
May 6, 2015
Description
Search/Exam
May 6, 2015
Letter accompanying subsequently filed items
Search/Exam
May 6, 2015
Apr 28, 2015
Apr 14, 2015
Feb 27, 2015
Annex to the communication
Search/Exam
Feb 27, 2015
Communication from the Examining Division
Search/Exam
Oct 23, 2012
Oct 23, 2012
Amended claims with annotations
Search/Exam
Oct 23, 2012
Amendments received before examination
Search/Exam
Oct 2, 2012
Note on telephone consultation
Search/Exam
May 29, 2012
May 21, 2012
May 4, 2012
Letter concerning the inventor
Search/Exam
Apr 25, 2012
Apr 19, 2012
Letter which had not been notified
Search/Exam
Apr 13, 2012
Apr 12, 2012
Mar 23, 2012
Mar 10, 2012
Annexes in respect of a client data request
Search/Exam
Mar 10, 2012
Feb 21, 2012
Jan 12, 2012
Jan 12, 2012
Annexes in respect of a client data request
Search/Exam
Jan 12, 2012
Payment of fees and costs
Search/Exam
Jan 12, 2012
Request for entry into the European phase
Search/Exam
Jan 12, 2012
Jan 5, 2012
Jan 5, 2012
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 11, 2011
Nov 3, 2011
Information on entry into European phase
Search/Exam
Mar 2, 2011
Notification of election of EPO
Search/Exam
Feb 18, 2011
Feb 8, 2011
Feb 8, 2011
Jan 25, 2011
Jan 25, 2011
Jan 25, 2011
Jan 24, 2011
Jan 24, 2011
PCT demand form
PCT2
Jan 24, 2011
PCT demand form
PCT2
Jan 24, 2011
PCT demand form
PCT2
Jan 24, 2011
Jan 24, 2011
Jan 18, 2011
Jan 18, 2011
Dec 29, 2010
Copy of the international search report
Search/Exam
Dec 29, 2010
Copy of the international search report
Search/Exam
Dec 29, 2010
Published international application - A1
Search/Exam
Oct 27, 2010
Oct 27, 2010
Oct 27, 2010
Jul 22, 2010
Abstract
PCTISA
Jul 22, 2010
Claims
PCTISA
Jul 22, 2010
Description
PCTISA
Jul 22, 2010
Drawings
PCTISA
Jul 22, 2010