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The patent EP2683670 was granted to Georgia Pacific Gypsum on Apr 24, 2019. The application was filed on Mar 5, 2012 under application number EP12754515A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| KNAUF INSULATION | Jan 24, 2020 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| KNAUF INSULATION | Jan 24, 2020 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4647496 |
| DESCRIPTION | US7731794 |
| DESCRIPTION | US7807592 |
| INTERNATIONAL-SEARCH-REPORT | US2007059513 |
| INTERNATIONAL-SEARCH-REPORT | US2010075167 |
| INTERNATIONAL-SEARCH-REPORT | US2856304 |
| INTERNATIONAL-SEARCH-REPORT | US7731794 |
| OPPOSITION | EP1112237 |
| OPPOSITION | US2010075167 |
| OPPOSITION | US2856304 |
| OPPOSITION | US4059456 |
| OPPOSITION | US5286412 |
| OPPOSITION | US7731794 |
| OPPOSITION | WO2004024648 |
| OPPOSITION | WO2012122102 |
| SEARCH | US2008070026 |
| SEARCH | US2010075167 |
| SEARCH | US5879446 |
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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Means of redress
OPPO
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Authorisation
OPPO
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Authorisation
OPPO
Jun 19, 2020
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May 7, 2019
Mar 28, 2019
Decision to grant a European patent
Search/Exam
Feb 26, 2019
(Electronic) Receipt
Search/Exam
Feb 26, 2019
French translation of claims
Search/Exam
Feb 26, 2019
German translation of the claims
Search/Exam
Feb 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Intention to grant (signatures)
Search/Exam
Oct 31, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 31, 2018
Nov 14, 2016
Amended claims with annotations
Search/Exam
Nov 14, 2016
Amended description with annotations
Search/Exam
Nov 14, 2016
Claims
Search/Exam
Nov 14, 2016
Description
Search/Exam
Nov 14, 2016
Sep 8, 2016
Annex to the communication
Search/Exam
Sep 8, 2016
Communication from the Examining Division
Search/Exam
Sep 1, 2016
Examination started
Search/Exam
Apr 24, 2015
Apr 24, 2015
Apr 24, 2015
Amended description with annotations
Search/Exam
Apr 24, 2015
Amendments received before examination
Search/Exam
Feb 24, 2015
Submission concerning representation
Search/Exam
Oct 14, 2014
Sep 26, 2014
Sep 26, 2014
European search opinion
Search/Exam
Sep 26, 2014
Supplementary European search report
Search/Exam
Sep 17, 2014
Search started
Search/Exam
Apr 10, 2014
Letter concerning fees and payments
Search/Exam
Apr 10, 2014
Payment of fees and costs
Search/Exam
Dec 18, 2013
Nov 8, 2013
Nov 4, 2013
Communication to designated inventor
Search/Exam
Oct 8, 2013
(Electronic) Receipt
Search/Exam
Oct 8, 2013
Request for entry into the European phase
Search/Exam
Sep 24, 2013
Jul 17, 2013
Information on entry into European phase
Search/Exam
Nov 15, 2012
Copy of the international search report
Search/Exam
Nov 15, 2012
Oct 3, 2012
Sep 13, 2012
Published international application - A2
Search/Exam