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The patent EP3351313 was granted to Leifeld Metal Spinning on Apr 15, 2020. The application was filed on Jan 18, 2017 under application number EP17151935A. 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 |
|---|---|---|---|
| WF MASCHINENBAU UND BLECHFORMTECHNIK | Jun 18, 2024 | KLEINE | INTERVENTION |
| SSB MASCHINENBAU | Jan 15, 2021 | BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE3545506 |
| DESCRIPTION | EP2210682 |
| DESCRIPTION | US3287951 |
| EXAMINATION | US3287951 |
| OPPOSITION | CN103317006 |
| OPPOSITION | CN103691789 |
| OPPOSITION | CN105458057 |
| OPPOSITION | CN106270087 |
| OPPOSITION | DE102011117034 |
| OPPOSITION | DE1916358 |
| OPPOSITION | DE2732651 |
| OPPOSITION | DE3545506 |
| OPPOSITION | EP1389501 |
| OPPOSITION | EP3351313 |
| OPPOSITION | JP2015221443 |
| OPPOSITION | KR20140101221 |
| OPPOSITION | US2013152652 |
| OPPOSITION | US2017001229 |
| SEARCH | DE102010000004 |
| SEARCH | DE102011117034 |
| SEARCH | WO2012042221 |
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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Reply to appeal
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Appeal
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Feb 23, 2023
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Notice of appeal
Appeal
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Means of redress
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Annexes in respect of a client data request
Search/Exam
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Apr 27, 2020
Mar 19, 2020
Decision to grant a European patent
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Feb 28, 2020
Feb 27, 2020
(Electronic) Receipt
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Feb 27, 2020
English translation of the claims
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Feb 27, 2020
Filing of the translations of the claims
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Feb 27, 2020
French translation of claims
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Feb 27, 2020
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Intention to grant (signatures)
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Feb 20, 2020
Text intended for grant (clean copy)
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Feb 20, 2020
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Observations by third parties
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Feb 17, 2020
Observations by third parties
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Feb 17, 2020
Patent document filed by a Third party
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Feb 17, 2020
Patent document filed by a Third party
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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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Patent document filed by a Third party
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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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Feb 17, 2020
Patent document filed by a Third party
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Jan 16, 2020
(Electronic) Receipt
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Jan 16, 2020
Amended claims with annotations
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Jan 16, 2020
Claims
Search/Exam
Jan 16, 2020
Letter accompanying subsequently filed items
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Jan 16, 2020
Nov 27, 2019
(Electronic) Receipt
Search/Exam
Nov 27, 2019
Amended claims with annotations
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Nov 27, 2019
Amended description with annotations
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Nov 27, 2019
Claims
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Nov 27, 2019
Description
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Nov 27, 2019
Letter accompanying subsequently filed items
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Nov 27, 2019
Oct 24, 2019
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(Electronic) Receipt
Search/Exam
Oct 21, 2019
Letter accompanying subsequently filed items
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Oct 21, 2019
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Annex to the communication
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Jun 14, 2019
Communication from the Examining Division
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Feb 21, 2019
(Electronic) Receipt
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Feb 21, 2019
Amended claims with annotations
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Feb 21, 2019
Claims
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Feb 21, 2019
Letter accompanying subsequently filed items
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Feb 21, 2019
Jan 8, 2019
Annex to the communication
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Jan 8, 2019
Communication from the Examining Division
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Dec 18, 2018
Examination started
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Aug 16, 2018
(Electronic) Receipt
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Aug 16, 2018
Letter accompanying subsequently filed items
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Aug 16, 2018
Jul 30, 2018
Jun 27, 2018
Notification of forthcoming publication
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Feb 14, 2018
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Jan 30, 2018
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Jan 30, 2018
Letter accompanying subsequently filed items
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Jan 30, 2018
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Nov 9, 2017
(Electronic) Receipt
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Nov 9, 2017
Nov 9, 2017
Letter accompanying subsequently filed items
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Nov 9, 2017
Matter concerning the application
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Jul 26, 2017
(Electronic) Receipt
Search/Exam
Jul 26, 2017
Jul 26, 2017
Amended claims with annotations
Search/Exam
Jul 26, 2017
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Amended description with annotations
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Jul 26, 2017
Amendments received before examination
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Jul 26, 2017
Letter accompanying subsequently filed items
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Jun 28, 2017
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European search opinion
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Jun 28, 2017
European search report
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Jun 28, 2017
Information on Search Strategy
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Jun 22, 2017
Modified abstract
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Apr 10, 2017
Communication to designated inventor
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Jan 27, 2017
(Electronic) Receipt
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Jan 27, 2017
Designation of inventor
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Jan 27, 2017
Letter accompanying subsequently filed items
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Jan 18, 2017
Abstract
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Jan 18, 2017
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Claims
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Jan 18, 2017
Description
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Jan 18, 2017
Drawings
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Jan 18, 2017
Request for grant of a European patent
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