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The patent EP3556501 was granted to Klingelnberg on Jan 10, 2024. The application was originally filed on Apr 1, 2019 under application number EP19166536A. 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.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102012017840 |
| OPPOSITION | WO2007139708 |
| SEARCH | DE102012017840 |
| SEARCH | DE112012006475T |
| SEARCH | EP3242175 |
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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OPPO
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OPPO
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OPPO
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Description
OPPO
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Document concerning representation
Search/Exam
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Decision to grant a European patent
Search/Exam
Aug 4, 2020
(Electronic) Receipt
Search/Exam
Aug 4, 2020
Filing of the translations of the claims
Search/Exam
Aug 4, 2020
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Jul 10, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 10, 2020
Jun 8, 2020
(Electronic) Receipt
Search/Exam
Jun 8, 2020
Amended description with annotations
Search/Exam
Jun 8, 2020
Description
Search/Exam
Jun 8, 2020
English translation of the claims
Search/Exam
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French translation of claims
Search/Exam
Jun 8, 2020
Letter accompanying subsequently filed items
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Intention to grant (signatures)
Search/Exam
Feb 11, 2020
Text intended for grant (clean copy)
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Examination started
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Jan 9, 2020
(Electronic) Receipt
Search/Exam
Jan 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2020
Nov 14, 2019
Oct 31, 2019
(Electronic) Receipt
Search/Exam
Oct 31, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 31, 2019
Reply to Written Opinion prepared by the EPO
Search/Exam
Oct 28, 2019
Sep 25, 2019
Notification of forthcoming publication
Search/Exam
Sep 24, 2019
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European search opinion
Search/Exam
Sep 24, 2019
European search report
Search/Exam
Sep 24, 2019
Information on Search Strategy
Search/Exam
Sep 12, 2019
Search started
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May 24, 2019
Communication to designated inventor
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May 10, 2019
Letter concerning the priority
Search/Exam
May 10, 2019
Priority document
Search/Exam
Apr 1, 2019
Abstract
Search/Exam
Apr 1, 2019
Apr 1, 2019
Claims
Search/Exam
Apr 1, 2019
Description
Search/Exam
Apr 1, 2019
Designation of inventor
Search/Exam
Apr 1, 2019
Drawings
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Apr 1, 2019
Request for grant of a European patent
Search/Exam