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The patent EP2434253 was granted to Mitutoyo on Jan 24, 2018. The application was filed on Sep 14, 2011 under application number EP11181277A. 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 |
|---|---|---|---|
| CARL ZEISS | Sep 4, 2018 | CARL ZEISS PATENTABTEILUNG | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH0634356 |
| DESCRIPTION | JPH11325869 |
| EXAMINATION | EP1258700 |
| OPPOSITION | DE19805892 |
| OPPOSITION | DE3210711 |
| OPPOSITION | EP0588512 |
| OPPOSITION | EP0802393 |
| OPPOSITION | EP0957417 |
| OPPOSITION | EP1500903 |
| OPPOSITION | US2005166413 |
| OPPOSITION | US4631834 |
| OPPOSITION | WO0227264 |
| OPPOSITION | WO8701798 |
| SEARCH | CN1073521 |
| SEARCH | US2001029778 |
| SEARCH | US2002000047 |
| SEARCH | US2007266781 |
| SEARCH | US2008148588 |
| SEARCH | US2009198472 |
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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OPPO
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OPPO
Nov 29, 2019
Description
OPPO
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Description
OPPO
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Decision to grant a European patent
Search/Exam
Dec 15, 2017
(Electronic) Receipt
Search/Exam
Dec 15, 2017
French translation of claims
Search/Exam
Dec 15, 2017
German translation of the claims
Search/Exam
Dec 15, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 31, 2017
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Aug 31, 2017
Intention to grant (signatures)
Search/Exam
Aug 31, 2017
Text intended for grant (clean copy)
Search/Exam
Aug 31, 2017
Feb 9, 2017
(Electronic) Receipt
Search/Exam
Feb 9, 2017
Amended claims with annotations
Search/Exam
Feb 9, 2017
Amended description with annotations
Search/Exam
Feb 9, 2017
Claims
Search/Exam
Feb 9, 2017
Description
Search/Exam
Feb 9, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 9, 2017
Dec 12, 2016
Annex to the communication
Search/Exam
Dec 12, 2016
Communication from the Examining Division
Search/Exam
Nov 30, 2016
Examination started
Search/Exam
Feb 4, 2016
Jan 30, 2016
Sep 24, 2012
Amended claims with annotations
Search/Exam
Sep 24, 2012
Amendments received before examination
Search/Exam
Sep 24, 2012
Claims
Search/Exam
Sep 24, 2012
Letter accompanying subsequently filed items
Search/Exam
Apr 2, 2012
Feb 29, 2012
Notification of forthcoming publication
Search/Exam
Dec 30, 2011
Dec 30, 2011
European search opinion
Search/Exam
Dec 30, 2011
European search report
Search/Exam
Nov 21, 2011
Nov 16, 2011
Oct 4, 2011
Payment of fees and costs
Search/Exam
Sep 14, 2011
Abstract
Search/Exam
Sep 14, 2011
Sep 14, 2011
Claims
Search/Exam
Sep 14, 2011
Description
Search/Exam
Sep 14, 2011
Designation of inventor
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Sep 14, 2011
Designation of inventor
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Sep 14, 2011
Designation of inventor
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Sep 14, 2011
Designation of inventor
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Sep 14, 2011
Designation of inventor
Search/Exam
Sep 14, 2011
Drawings
Search/Exam
Sep 14, 2011
Request for grant of a European patent
Search/Exam