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The patent EP2820256 was granted to Raytheon on Jun 2, 2021. The application was filed on Jan 17, 2013 under application number EP13754324A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| SAFRAN AIRCRAFT ENGINES | Feb 28, 2022 | REGIMBEAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE3933776 |
| DESCRIPTION | US2008098715 |
| DESCRIPTION | US2009317229 |
| EXAMINATION | EP2809912 |
| INTERNATIONAL-SEARCH-REPORT | US2008276621 |
| INTERNATIONAL-SEARCH-REPORT | US2009097967 |
| INTERNATIONAL-SEARCH-REPORT | US2009317229 |
| INTERNATIONAL-SEARCH-REPORT | US2010132377 |
| INTERNATIONAL-SEARCH-REPORT | US5081832 |
| INTERNATIONAL-SEARCH-REPORT | US7685808 |
| INTERNATIONAL-SEARCH-REPORT | US8015798 |
| OPPOSITION | US5160251 |
| OPPOSITION | WO2013116028 |
| OPPOSITION | WO2013116259 |
| SEARCH | DE3933776 |
| SEARCH | US2008098715 |
| SEARCH | US2008276621 |
| SEARCH | US2009317229 |
| SEARCH | US5160251 |
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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Jun 15, 2021
May 7, 2021
Decision to grant a European patent
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Apr 26, 2021
(Electronic) Receipt
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Apr 26, 2021
Filing of the translations of the claims
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Apr 26, 2021
French translation of claims
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Apr 26, 2021
German translation of the claims
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Apr 26, 2021
Letter accompanying subsequently filed items
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Feb 19, 2021
Feb 8, 2021
Authorisation
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Feb 8, 2021
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Annexes in respect of a client data request
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Dec 18, 2020
Annexes in respect of a client data request
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Intention to grant (signatures)
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Dec 15, 2020
Text intended for grant (clean copy)
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Dec 15, 2020
Feb 17, 2020
(Electronic) Receipt
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Feb 17, 2020
Amended claims with annotations
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Feb 17, 2020
Amended description with annotations
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Feb 17, 2020
Claims
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Feb 17, 2020
Description
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Feb 17, 2020
Letter accompanying subsequently filed items
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Feb 17, 2020
Dec 19, 2019
Dec 13, 2019
(Electronic) Receipt
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Dec 13, 2019
Aug 6, 2019
Annex to the communication
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Aug 6, 2019
Communication from the Examining Division
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Oct 30, 2018
(Electronic) Receipt
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Oct 30, 2018
Amended claims with annotations
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Oct 30, 2018
Amended description with annotations
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Oct 30, 2018
Claims
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Oct 30, 2018
Description
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Oct 30, 2018
Letter accompanying subsequently filed items
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Oct 30, 2018
Sep 10, 2018
Aug 30, 2018
(Electronic) Receipt
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Aug 30, 2018
May 28, 2018
May 17, 2018
Apr 20, 2018
Annex to the communication
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Apr 20, 2018
Communication from the Examining Division
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Apr 11, 2018
Examination started
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Jan 25, 2018
Sep 21, 2016
Sep 16, 2016
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Jul 18, 2016
(Electronic) Receipt
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Jul 18, 2016
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Amended claims with annotations
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Amended description with annotations
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Jul 18, 2016
Amendments received before examination
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Jul 18, 2016
Letter accompanying subsequently filed items
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Feb 22, 2016
CDS Clean up - amended applicant details
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Jan 8, 2016
Dec 10, 2015
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European search opinion
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Dec 10, 2015
Information on Search Strategy
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Dec 10, 2015
Supplementary European search report
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Nov 25, 2015
Search started
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May 14, 2015
(Electronic) Receipt
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May 14, 2015
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Amendments received before examination
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May 14, 2015
Letter accompanying subsequently filed items
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Dec 18, 2014
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Sep 25, 2014
(Electronic) Receipt
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Sep 25, 2014
Request for entry into the European phase
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Sep 16, 2014
Jul 11, 2014
Information on entry into European phase
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Sep 24, 2013
Sep 6, 2013
Copy of the international search report
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Sep 6, 2013
Published international application - A1
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