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The patent EP3135517 was granted to AGC on Jan 4, 2023. The application was filed on Jul 28, 2016 under application number EP16001666A. 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 |
|---|---|---|---|
| SAINT GOBAIN | Jan 28, 2020 | SAINT GOBAIN RECHERCHE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2001219738 |
| OPPOSITION | EP0694429 |
| OPPOSITION | EP0768201 |
| OPPOSITION | JP2001219738 |
| OPPOSITION | JP2002178748 |
| OPPOSITION | WO2009053620 |
| SEARCH | DE4224486 |
| SEARCH | EP0822109 |
| SEARCH | JPS626120U |
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.
Date
Description
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Dec 8, 2022
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(Electronic) Receipt
Appeal
Aug 29, 2022
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Aug 26, 2022
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
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(Electronic) Receipt
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Mar 16, 2022
(Electronic) Receipt
Appeal
Mar 16, 2022
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(Electronic) Receipt
Appeal
Mar 15, 2022
Advice of delivery
Appeal
Mar 15, 2022
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(Electronic) Receipt
Appeal
Mar 7, 2022
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(Electronic) Receipt
Appeal
Feb 24, 2022
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Claims
Appeal
Feb 24, 2022
Feb 24, 2022
Reply to appeal
Appeal
Oct 29, 2021
Oct 25, 2021
(Electronic) Receipt
Appeal
Oct 25, 2021
Oct 25, 2021
Sep 27, 2021
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 19, 2021
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Notice of appeal
Appeal
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Means of redress
OPPO
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May 13, 2019
Apr 4, 2019
Decision to grant a European patent
Search/Exam
Mar 19, 2019
Filing of the translations of the claims
Search/Exam
Mar 19, 2019
French translation of claims
Search/Exam
Mar 19, 2019
German translation of the claims
Search/Exam
Nov 21, 2018
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Nov 21, 2018
Intention to grant (signatures)
Search/Exam
Nov 21, 2018
Text intended for grant (clean copy)
Search/Exam
Nov 21, 2018
Oct 31, 2018
(Electronic) Receipt
Search/Exam
Oct 31, 2018
Enquiry as to the processing of the file
Search/Exam
Oct 31, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 17, 2018
Examination started
Search/Exam
Aug 27, 2018
Aug 10, 2018
Annexes in respect of a client data request
Search/Exam
Aug 3, 2018
Aug 24, 2017
Payment of fees and costs
Search/Exam
Aug 17, 2017
Aug 17, 2017
Amended claims with annotations
Search/Exam
Aug 17, 2017
Aug 17, 2017
Amended description with annotations
Search/Exam
Aug 17, 2017
Amendments received before examination
Search/Exam
Aug 17, 2017
Matter concerning the application
Search/Exam
Mar 6, 2017
Feb 1, 2017
Notification of forthcoming publication
Search/Exam
Jan 31, 2017
Jan 31, 2017
European search opinion
Search/Exam
Jan 31, 2017
European search report
Search/Exam
Jan 31, 2017
Information on Search Strategy
Search/Exam
Jan 25, 2017
Modified abstract
Search/Exam
Jan 18, 2017
Search started
Search/Exam
Oct 10, 2016
Sep 28, 2016
Sep 28, 2016
Sep 27, 2016
Communication to designated inventor
Search/Exam
Sep 27, 2016
Communication to designated inventor
Search/Exam
Aug 4, 2016
Payment of fees and costs
Search/Exam
Jul 28, 2016
Abstract
Search/Exam
Jul 28, 2016
Claims
Search/Exam
Jul 28, 2016
Description
Search/Exam
Jul 28, 2016
Designation of inventor
Search/Exam
Jul 28, 2016
Drawings
Search/Exam
Jul 28, 2016
Request for grant of a European patent
Search/Exam