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The patent EP2853357 was granted to Cama on Jan 25, 2023. The application was filed on Mar 16, 2011 under application number EP14191300A. 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 |
|---|---|---|---|
| GERHARD SCHUBERT | Feb 4, 2019 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0695703 |
| OPPOSITION | US3253694 |
| OPPOSITION | US3788463 |
| OPPOSITION | US465875 |
| OPPOSITION | US4771589 |
| OPPOSITION | US5147177 |
| OPPOSITION | US5641051 |
| OPPOSITION | US5704195 |
| OPPOSITION | WO2011016968 |
| SEARCH | US3253694 |
| SEARCH | US3788463 |
| SEARCH | US4658575 |
| SEARCH | US4771589 |
| SEARCH | US5147177 |
| SEARCH | US5641051 |
| SEARCH | US5704195 |
| SEARCH | WO2011016968 |
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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Search/Exam
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended description with annotations
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Description
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Amended claims with annotations
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Claims
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Annex to the communication
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Communication from the Examining Division
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Examination started
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Refund of fees
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Reply to Written Opinion prepared by the EPO
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Refund of fees
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European search opinion
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European search report
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Matter concerning the application
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Notification of forthcoming publication
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Communication to designated inventor
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Abstract
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Claims
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Description
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Drawings
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Oct 31, 2014
Request for grant of a European patent
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