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The patent EP3339509 was granted to Dynapac on Jul 7, 2021. The application was filed on Nov 27, 2017 under application number EP17001937A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| WIRTGEN | Apr 7, 2022 | RUTTENSPERGER LACHNIT TROSSIN GOMOLL | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Description
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Dec 1, 2025
Nov 25, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Reply to appeal
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Jun 10, 2021
Decision to grant a European patent
Search/Exam
Jan 13, 2021
Nov 3, 2020
(Electronic) Receipt
Search/Exam
Nov 3, 2020
English translation of the claims
Search/Exam
Nov 3, 2020
Filing of the translations of the claims
Search/Exam
Nov 3, 2020
French translation of claims
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Nov 3, 2020
Letter accompanying subsequently filed items
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Jul 3, 2020
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Intention to grant (signatures)
Search/Exam
Jul 3, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 3, 2020
Jan 7, 2020
Dec 16, 2019
Amended claims with annotations
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Dec 16, 2019
Amended description with annotations
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Dec 16, 2019
Claims
Search/Exam
Dec 16, 2019
Description
Search/Exam
Dec 16, 2019
Dec 13, 2019
Amended claims with annotations
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Dec 13, 2019
Amended description with annotations
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Dec 13, 2019
Claims
Search/Exam
Dec 13, 2019
Description
Search/Exam
Dec 13, 2019
Aug 23, 2019
Annex to the communication
Search/Exam
Aug 23, 2019
Aug 14, 2019
Examination started
Search/Exam
Dec 21, 2018
Dec 21, 2018
Amended claims with annotations
Search/Exam
Dec 21, 2018
Dec 21, 2018
Amended description with annotations
Search/Exam
Dec 21, 2018
Amendments received before examination
Search/Exam
Dec 20, 2018
Dec 20, 2018
Amended claims with annotations
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Dec 20, 2018
Dec 20, 2018
Amended description with annotations
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Dec 20, 2018
Amendments received before examination
Search/Exam
Dec 19, 2018
Written request for examination
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Jul 2, 2018
May 30, 2018
Notification of forthcoming publication
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May 24, 2018
May 24, 2018
European search opinion
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May 24, 2018
European search report
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May 24, 2018
Information on Search Strategy
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May 4, 2018
Search started
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Feb 6, 2018
Communication to designated inventor
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Feb 6, 2018
Communication to designated inventor
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Feb 6, 2018
Communication to designated inventor
Search/Exam
Dec 7, 2017
Letter concerning the priority
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Dec 7, 2017
Priority document
Search/Exam
Nov 27, 2017
Abstract
Search/Exam
Nov 27, 2017
Claims
Search/Exam
Nov 27, 2017
Description
Search/Exam
Nov 27, 2017
Designation of inventor
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Nov 27, 2017
Drawings
Search/Exam
Nov 27, 2017
Priority search results
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Nov 27, 2017
Request for grant of a European patent
Search/Exam
Nov 27, 2017
Submission concerning representation
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