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The patent EP2341251 was granted to Shimadzu on Dec 26, 2018. The application was filed on Oct 5, 2009 under application number EP09817923A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| PFEIFFER VACUUM | Sep 16, 2019 | KNEFEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2003013880 |
| INTERNATIONAL-SEARCH-REPORT | JPH08247084 |
| OPPOSITION | DE2717366 |
| OPPOSITION | DE3919529 |
| OPPOSITION | DE7237362U |
| OPPOSITION | EP0640185 |
| OPPOSITION | EP0965761 |
| OPPOSITION | JP2003003987 |
| OPPOSITION | JP2003013880 |
| OPPOSITION | JP2005180265 |
| OPPOSITION | JPH08247084 |
| OPPOSITION | US3644051 |
| OPPOSITION | US3826588 |
| OPPOSITION | US5033936 |
| OPPOSITION | US7645126 |
| OPPOSITION | WO2010038896 |
| SEARCH | JP2003013880 |
| SEARCH | JP2005180265 |
| SEARCH | JPH04246288 |
| SEARCH | JPH08247084 |
| SEARCH | US3644051 |
| SEARCH | US5033936 |
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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Nov 29, 2018
Decision to grant a European patent
Search/Exam
Nov 13, 2018
(Electronic) Receipt
Search/Exam
Nov 13, 2018
Filing of the translations of the claims
Search/Exam
Nov 13, 2018
French translation of claims
Search/Exam
Nov 13, 2018
German translation of the claims
Search/Exam
Nov 13, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 18, 2018
Jul 18, 2018
Jul 18, 2018
Intention to grant (signatures)
Search/Exam
Jul 18, 2018
Text intended for grant (clean copy)
Search/Exam
Jul 18, 2018
Jun 22, 2018
Examination started
Search/Exam
Apr 27, 2018
(Electronic) Receipt
Search/Exam
Apr 27, 2018
Apr 27, 2018
Amended claims with annotations
Search/Exam
Apr 27, 2018
Apr 27, 2018
Amended description with annotations
Search/Exam
Apr 27, 2018
Amendments received before examination
Search/Exam
Apr 27, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 2, 2017
Oct 12, 2017
Oct 12, 2017
European search opinion
Search/Exam
Oct 12, 2017
Information on Search Strategy
Search/Exam
Oct 12, 2017
Supplementary European search report
Search/Exam
Sep 27, 2017
Search started
Search/Exam
Sep 26, 2014
Submission concerning representation
Search/Exam
Jun 9, 2011
Notification of forthcoming publication
Search/Exam
Jun 6, 2011
May 16, 2011
May 2, 2011
(Electronic) Receipt
Search/Exam
May 2, 2011
Abstract
Search/Exam
May 2, 2011
Claims
Search/Exam
May 2, 2011
Description
Search/Exam
May 2, 2011
Drawings
Search/Exam
May 2, 2011
Request for entry into the European phase
Search/Exam
Apr 26, 2011
Feb 11, 2011
Information on entry into European phase
Search/Exam
Jul 15, 2010
Notification of the recording of a change
Search/Exam
Jun 16, 2010
Apr 8, 2010
Copy of the international search report
Search/Exam
Apr 8, 2010
Apr 8, 2010
International publication pamphlet
Search/Exam