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The patent EP3425324 was granted to Sick on Nov 16, 2022. The application was filed on Jul 4, 2017 under application number EP17179587A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| LEUZE ELECTRONIC | May 29, 2020 | RUCKH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP3070556 |
| OPPOSITION | US2017146375 |
| OPPOSITION | WO2012110089 |
| OPPOSITION | WO2012175120 |
| SEARCH | EP2026033 |
| SEARCH | WO2015158962 |
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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Decision to grant a European patent
Search/Exam
May 28, 2019
(Electronic) Receipt
Search/Exam
May 28, 2019
English translation of the claims
Search/Exam
May 28, 2019
Filing of the translations of the claims
Search/Exam
May 28, 2019
French translation of claims
Search/Exam
May 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2019
Submission concerning representation
Search/Exam
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Intention to grant (signatures)
Search/Exam
Jan 23, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 23, 2019
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Notification of forthcoming publication
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Nov 16, 2018
Examination started
Search/Exam
Sep 4, 2018
(Electronic) Receipt
Search/Exam
Sep 4, 2018
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Amended claims with annotations
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Sep 4, 2018
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Amended description with annotations
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Sep 4, 2018
Amendments received before examination
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Sep 4, 2018
Letter accompanying subsequently filed items
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Dec 22, 2017
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European search opinion
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Dec 22, 2017
European search report
Search/Exam
Dec 22, 2017
Information on Search Strategy
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Dec 7, 2017
Search started
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Aug 25, 2017
Communication to designated inventor
Search/Exam
Jul 4, 2017
Abstract
Search/Exam
Jul 4, 2017
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Claims
Search/Exam
Jul 4, 2017
Description
Search/Exam
Jul 4, 2017
Designation of inventor
Search/Exam
Jul 4, 2017
Drawings
Search/Exam
Jul 4, 2017
Request for grant of a European patent
Search/Exam