The patent EP2823924 was granted to Liebherr Verzahntechnik on Jan 1, 2025. The application was originally filed on Jun 10, 2014 under application number EP14171795A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
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| Citation Phase | Reference Text | Link |
|---|---|---|
| OPPOSITION | - Anonymous, "Generating and Porfile grinding mavhineS250 G", SAMP - Operation and Maintenance Manual, (20070523), SAMP - Operation and Maintenance Manual, (20220823), XP055954204 | - |
| OPPOSITION | - H. SCHRIEFER et al, Kontinuierliches Wälzschleifen von Verzahnungen, Reishauer, (20080700), pages 1 - 580, ISBN 978-3-033-01447-3 | - |
| OPPOSITION | - Samputensili, "S 250/400 G Wälz- und Profilschleifmaschinen", Kundenprospekt, (20070101), Kundenprospekt, (20180709), XP055491153 | - |
| OTHER | - SAMPUTENSILI, "S 250/400 G Wälz- und Profilschleifmaschinen", Kundenprospekt, (20070100), XP055491153 | - |
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Description
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Dec 5, 2024
Dec 5, 2024
Nov 28, 2024
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Oct 15, 2024
Refund of fees
OPPO
Sep 20, 2024
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Refund of fees
Appeal
Sep 17, 2024
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(Electronic) Receipt
Appeal
Aug 29, 2024
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
Jul 1, 2024
Notice of appeal
Appeal
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Decision to grant a European patent
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(Electronic) Receipt
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Jun 26, 2020
English translation of the claims
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Jun 26, 2020
French translation of claims
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Jun 26, 2020
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Apr 3, 2020
Mar 24, 2020
Payment submission rejected
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Jan 16, 2020
Amended claims with annotations
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Amended description with annotations
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Jan 16, 2020
Claims
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Jan 16, 2020
Description
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Sep 23, 2019
Annex to the communication
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Sep 23, 2019
Communication from the Examining Division
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Mar 7, 2019
Amended claims with annotations
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Mar 7, 2019
Claims
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Annex to the communication
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Aug 28, 2018
Communication from the Examining Division
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Examination started
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(Electronic) Receipt
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Jun 11, 2018
Letter accompanying subsequently filed items
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Observations by third parties
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Patent document filed by a Third party
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Patent document filed by a Third party
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Amended claims with annotations
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Apr 20, 2016
Payment of fees and costs
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Jan 26, 2016
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Submission concerning representation
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Oct 26, 2015
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European search opinion
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Sep 22, 2015
European search report
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Sep 3, 2015
Search started
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Dec 17, 2014
Notification of forthcoming publication
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Communication to designated inventor
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Aug 1, 2014
Communication to designated inventor
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Jun 11, 2014
Letter concerning the priority
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Jun 11, 2014
Priority document
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Jun 10, 2014
Abstract
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Jun 10, 2014
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Claims
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Jun 10, 2014
Description
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Jun 10, 2014
Designation of inventor
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Designation of inventor
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Jun 10, 2014
Drawings
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Jun 10, 2014
Priority search results
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Jun 10, 2014
Request for grant of a European patent
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