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The patent EP2774902 was granted to STO on Oct 4, 2017. The application was filed on Mar 7, 2013 under application number EP13158232A. 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 |
|---|---|---|---|
| ARDEX | Jul 4, 2018 | BALS & VOGEL PATENTANWALTE PARTGMBB | - |
| G THEODOR FREESE | Jul 4, 2018 | EISENFUHR SPEISER | - |
| UZIN UTZ | Jul 4, 2018 | ISARPATENT | - |
| CONSTRUCTION RESEARCH & TECHNOLOGY | Jul 3, 2018 | REITSTOTTER KINZEBACH | - |
| DAW | Jul 3, 2018 | METTEN | - |
| SAINT GOBAIN | Jun 27, 2018 | SAINT GOBAIN RECHERCHE | ADMISSIBLE |
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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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
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English translation of the claims
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Aug 23, 2017
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French translation of claims
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Aug 23, 2017
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Intention to grant (signatures)
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Communication from the Examining Division
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Annex to the communication
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(Electronic) Receipt
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Amended claims with annotations
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Search/Exam
Dec 20, 2016
Description
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended claims with annotations
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Nov 22, 2016
Amended claims with annotations
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Claims
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Nov 22, 2016
Description
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Letter accompanying subsequently filed items
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Nov 22, 2016
Oct 4, 2016
Annex to the communication
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Oct 4, 2016
Communication from the Examining Division
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Sep 26, 2016
Examination started
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Sep 26, 2016
Submission concerning representation
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Notification of forthcoming publication
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(Electronic) Receipt
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Amended claims with annotations
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Letter accompanying subsequently filed items
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Dec 2, 2013
Written request for examination
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Sep 3, 2013
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European search opinion
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Sep 3, 2013
European search report
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Aug 5, 2013
Search started
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May 2, 2013
Communication to designated inventor
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May 2, 2013
Communication to designated inventor
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Mar 7, 2013
Abstract
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Mar 7, 2013
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Claims
Search/Exam
Mar 7, 2013
Description
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Mar 7, 2013
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Mar 7, 2013
Designation of inventor
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Mar 7, 2013
Request for grant of a European patent
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