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The patent EP2736731 was granted to JS Staedtler on Jul 17, 2024. The application was filed on Jul 5, 2012 under application number EP12758396A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| SOCIETE BIC | Dec 27, 2021 | PETERREINS SCHLEY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102008034013 |
| DESCRIPTION | DE801613 |
| DESCRIPTION | EP1150847 |
| INTERNATIONAL-SEARCH-REPORT | DE2144053 |
| INTERNATIONAL-SEARCH-REPORT | FR944811 |
| INTERNATIONAL-SEARCH-REPORT | US6019533 |
| OPPOSITION | DE102008034013 |
| OPPOSITION | JP2010036372 |
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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Jan 23, 2025
Jan 13, 2025
Annexes in respect of a client data request
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Jan 13, 2025
Letter accompanying subsequently filed items
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Decision to grant a European patent
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Feb 18, 2021
English translation of the claims
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Feb 18, 2021
Filing of the translations of the claims
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Feb 18, 2021
French translation of claims
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Jan 20, 2021
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Intention to grant (signatures)
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Jan 20, 2021
Text intended for grant (clean copy)
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Jan 20, 2021
Aug 24, 2020
Abstract
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Aug 24, 2020
Abstract
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Amended claims with annotations
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Amended description with annotations
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Aug 24, 2020
Claims
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Aug 24, 2020
Description
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Annex to the communication
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Communication from the Examining Division
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Jul 17, 2019
Abstract
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Abstract
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Jul 17, 2019
Amended claims with annotations
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Jul 17, 2019
Amended description with annotations
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Jul 17, 2019
Claims
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Jul 17, 2019
Description
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Jul 17, 2019
Mar 29, 2019
Annex to the communication
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Mar 29, 2019
Communication from the Examining Division
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Dec 20, 2018
Examination started
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Mar 9, 2016
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Annexes in respect of a client data request
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Priority search results
Search/Exam
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Amendments received before examination
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May 8, 2014
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Communication to designated inventor
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Feb 24, 2014
Note on telephone consultation
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Jan 14, 2014
Annex
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Jan 14, 2014
Annex
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Jan 14, 2014
General authorisation
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Jan 14, 2014
Request for entry into the European phase
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Dec 4, 2013
Information on entry into European phase
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Feb 18, 2013
Jan 31, 2013
Copy of the international search report
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Jan 31, 2013
Copy of the international search report
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Jan 31, 2013
Published international application - A1
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Oct 23, 2012
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Jul 5, 2012
Abstract
PCTRO
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Claims
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Jul 5, 2012
Description
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Jul 5, 2012
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