The patent EP2493638 was granted to Mannesmann Grorohr on Jul 5, 2017. The application was originally filed on Aug 26, 2010 under application number EP10768373A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | Link |
|---|---|---|
| OPPOSITION | - "Helical two Step-Verfahren", Salzgitter Mannesmann Homepage, (20170103), XP055479223 | - |
| OPPOSITION | - Stahlrohrhandbuch, (19950000), XP055479218 | - |
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Date
Description
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Nov 24, 2020
Nov 6, 2020
Refund of fees
Appeal
Nov 4, 2020
Nov 4, 2020
Nov 3, 2020
(Electronic) Receipt
Appeal
Nov 3, 2020
Nov 3, 2020
Nov 3, 2020
Oct 29, 2020
(Electronic) Receipt
Appeal
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Withdrawal of an appeal
Appeal
Jun 26, 2020
Jun 22, 2020
(Electronic) Receipt
Appeal
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 19, 2020
Jun 19, 2020
Non-scannable object
Appeal
May 4, 2020
Apr 16, 2020
(Electronic) Receipt
Appeal
Apr 16, 2020
Apr 16, 2020
Notice of appeal
Appeal
Feb 24, 2020
Feb 21, 2020
Feb 19, 2020
Feb 19, 2020
Feb 19, 2020
Feb 19, 2020
Feb 19, 2020
Feb 19, 2020
Feb 19, 2020
Means of redress
OPPO
Feb 19, 2020
Feb 19, 2020
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Feb 19, 2020
Nov 7, 2019
Oct 25, 2019
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Aug 28, 2019
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Aug 26, 2019
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Aug 16, 2018
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Aug 9, 2018
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Apr 19, 2018
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Apr 13, 2018
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Apr 10, 2018
Apr 10, 2018
General enquiry
OPPO
Apr 10, 2018
Apr 4, 2018
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Apr 4, 2018
Apr 4, 2018
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Jul 5, 2017
Jun 9, 2017
Decision to grant a European patent
Search/Exam
May 24, 2017
English translation of the claims
Search/Exam
May 24, 2017
Filing of the translations of the claims
Search/Exam
May 24, 2017
French translation of claims
Search/Exam
May 24, 2017
Payment of fees and costs
Search/Exam
May 24, 2017
Payment of fees and costs
Search/Exam
Jan 26, 2017
Jan 26, 2017
Jan 26, 2017
Intention to grant (signatures)
Search/Exam
Jan 26, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 26, 2017
May 14, 2016
May 13, 2016
Feb 26, 2016
Annex to the communication
Search/Exam
Feb 26, 2016
Communication from the Examining Division
Search/Exam
Feb 11, 2016
Feb 5, 2016
Jan 21, 2016
Jan 10, 2013
Jan 10, 2013
Amendments received before examination
Search/Exam
Oct 8, 2012
Aug 8, 2012
Jul 11, 2012
May 21, 2012
Apr 24, 2012
Notification of the recording of a change
Search/Exam
Mar 22, 2012
Priority search results
Search/Exam
Mar 22, 2012
Request for entry into the European phase
Search/Exam
Mar 9, 2012
Information on entry into European phase
Search/Exam
May 26, 2011
May 5, 2011
Copy of the international search report
Search/Exam
May 5, 2011
Copy of the international search report
Search/Exam
May 5, 2011
Published international application - A1
Search/Exam
Dec 21, 2010
Dec 21, 2010
Dec 21, 2010
Oct 18, 2010
Abstract
PCTISA
Oct 18, 2010
Claims
PCTISA
Oct 18, 2010
Description
PCTISA
Oct 18, 2010
Drawings
PCTISA