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The patent EP3497488 was granted to Essilor on Mar 22, 2023. The application was filed on Aug 9, 2017 under application number EP17771862A. 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 |
|---|---|---|---|
| BECKER | Mar 16, 2021 | BECKER KURIG & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1085348 |
| DESCRIPTION | EP1085349 |
| DESCRIPTION | EP2263788 |
| DESCRIPTION | EP2282713 |
| DESCRIPTION | JP3347140B |
| DESCRIPTION | US2012188503 |
| DESCRIPTION | US5949518 |
| INTERNATIONAL-SEARCH-REPORT | CN103980643 |
| INTERNATIONAL-SEARCH-REPORT | US2014080972 |
| INTERNATIONAL-SEARCH-REPORT | US4166043 |
| OPPOSITION | CN1419151 |
| OPPOSITION | EP0082204 |
| OPPOSITION | EP0371140 |
| OPPOSITION | EP1505412 |
| OPPOSITION | JP2003155415 |
| OPPOSITION | US2010113901 |
| OPPOSITION | US2014080972 |
| OPPOSITION | US5663279 |
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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Decision to grant a European patent
Search/Exam
May 6, 2020
(Electronic) Receipt
Search/Exam
May 6, 2020
Filing of the translations of the claims
Search/Exam
May 6, 2020
French translation of claims
Search/Exam
May 6, 2020
German translation of the claims
Search/Exam
May 6, 2020
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
Search/Exam
Mar 2, 2020
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(Electronic) Receipt
Search/Exam
Sep 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 9, 2019
Reply to Written Opinion prepared by the EPO
Search/Exam
May 22, 2019
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Mar 15, 2019
Communication to designated inventor
Search/Exam
Mar 11, 2019
Priority search results copy provided by EPO
Search/Exam
Feb 27, 2019
Jan 18, 2019
(Electronic) Receipt
Search/Exam
Jan 18, 2019
Request for entry into the European phase
Search/Exam
Dec 19, 2018
Information on entry into European phase
Search/Exam
Jun 27, 2018
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Notification of the recording of a change
Search/Exam
Mar 5, 2018
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Copy of the international search report
Search/Exam
Feb 15, 2018
Published international application - A1
Search/Exam
Nov 20, 2017
ISR: cited documents
PCTISA
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Abstract
PCTISA
Sep 27, 2017
Claims
PCTISA
Sep 27, 2017
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Description
PCTISA
Sep 27, 2017
Drawings
PCTISA
Sep 27, 2017