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Cooling System For A Downstream Cavity Of A Centrifugal Compressor Impeller

Patent No. EP1881182 (titled "Cooling System For A Downstream Cavity Of A Centrifugal Compressor Impeller") was filed by Safran Aircraft Engines on Jul 10, 2007. The application was issued on Mar 2, 2022.

Patent Summary

Patent Family

Patent Oppositions

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
RAYTHEON	Jan 18, 2019	DEHNS

Dossier Documents

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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Feb 3, 2022
Decision to maintain the European patent in amended form
Feb 3, 2022
Decision to maintain the European patent in amended form
Feb 1, 2022
Termination of the opposition proceedings with maintenance of patent
Jan 19, 2022
(Electronic) Receipt
Jan 19, 2022
English translation of the claims
Jan 19, 2022
Filing of the translation of the amended claims
Jan 19, 2022
German translation of the claims
Jan 19, 2022
Letter accompanying subsequently filed items
Oct 20, 2021
Communication of bibliographic data
Oct 20, 2021
Communication to opponent concerning maintenance
Oct 20, 2021
Communication with request to file translations
Oct 12, 2021
Maintenance of the patent with the documents specified in the final decision
Sep 14, 2021
Refund of fees
Sep 10, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Sep 10, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Aug 30, 2021
Composition of the board (T)
Aug 18, 2021
(Electronic) Receipt
Aug 18, 2021
Letter accompanying subsequently filed items
Aug 18, 2021
Withdrawal of an appeal
Jun 29, 2021
F3204 Communication of the file number to the parties
Jun 29, 2021
F3204 Communication of the file number to the parties
Jun 21, 2021
(Electronic) Receipt
Jun 21, 2021
Letter accompanying subsequently filed items
Jun 21, 2021
Notice of appeal
May 21, 2021
Advice of delivery
May 14, 2021
Communication of amended entries concerning the representative
May 6, 2021
Submission concerning change of applicant's representative
Apr 29, 2021
(Electronic) Receipt
Apr 29, 2021
Advice of delivery
Apr 9, 2021
(Electronic) Receipt
Apr 9, 2021
Advice of delivery
Apr 9, 2021
Annex to the communication - opposition
Apr 9, 2021
Druckexemplar in opposition procedure
Apr 9, 2021
Grounds for the decision (Annex) - opposition
Apr 9, 2021
Interlocutory decision in opposition proceedings
Apr 9, 2021
Internal form - Opposition/addressees
Apr 9, 2021
Internal form - Opposition/addressees
Apr 9, 2021
Means of redress
Apr 9, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 9, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 9, 2021
Provision of a copy of the minutes - opposition procedure
Apr 9, 2021
Transmittal of decision / summons - opposition
Apr 9, 2021
Transmittal of decision / summons - opposition
Mar 31, 2021
Decision of the Opposition Division and instruction
Mar 31, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 31, 2021
Scanned annex to a communication - opposition procedure
Mar 31, 2021
Scanned annex to a communication - opposition procedure
Jan 28, 2021
Information about the result of oral proceedings
Jan 14, 2021
Brief communication - Opposition proceedings
Jan 14, 2021
Notification concerning the date of oral proceedings
Jan 14, 2021
Notification concerning the date of oral proceedings
Jan 4, 2021
(Electronic) Receipt
Jan 4, 2021
Letter accompanying subsequently filed items
Jan 4, 2021
Oral proceedings: Request for postponement
Dec 18, 2020
(Electronic) Receipt
Dec 18, 2020
Letter accompanying subsequently filed items
Dec 9, 2020
Notification concerning the date of oral proceedings
Dec 9, 2020
Notification concerning the date of oral proceedings
Dec 7, 2020
Brief communication - Opposition proceedings
Dec 7, 2020
Brief communication - Opposition proceedings
Nov 26, 2020
(Electronic) Receipt
Nov 26, 2020
Request for interpreters during oral proceedings
Oct 14, 2020
(Electronic) Receipt
Oct 14, 2020
Letter accompanying subsequently filed items
Oct 14, 2020
Oral proceedings: reply to date proposed
Aug 6, 2020
Brief communication - Opposition proceedings
Aug 4, 2020
Communication of amended entries
Jul 27, 2020
Annexes in respect of a client data request
Jul 27, 2020
Request for change of name -opponent
Jul 21, 2020
Notification concerning the date of oral proceedings
Jul 21, 2020
Notification concerning the date of oral proceedings
May 6, 2020
Acknowledgement of a document
May 6, 2020
Acknowledgement of a document
May 6, 2020
Information concerning oral proceedings
May 6, 2020
Notification concerning the date of oral proceedings
May 6, 2020
Summons to attend oral proceedings
May 6, 2020
Summons to attend oral proceedings
Apr 8, 2020
Communication of amended entries concerning the representative
Apr 2, 2020
Letter accompanying subsequently filed items
Apr 2, 2020
Submission concerning change of applicant's representative
Mar 26, 2020
Brief communication - Opposition proceedings
Mar 26, 2020
Brief communication - Opposition proceedings
Mar 19, 2020
(Electronic) Receipt
Mar 19, 2020
Request for interpreters during oral proceedings
Mar 17, 2020
(Electronic) Receipt
Mar 17, 2020
Amended claims with annotations
Mar 17, 2020
Amended claims with annotations
Mar 17, 2020
Brief communication - Opposition proceedings
Mar 17, 2020
Claims
Mar 17, 2020
Claims
Mar 17, 2020
Letter accompanying subsequently filed items
Mar 17, 2020
Written submission in preparation to/during oral proceedings
Oct 23, 2019
Advice of delivery
Oct 8, 2019
Advice of delivery
Oct 4, 2019
Advice of delivery
Sep 24, 2019
Acknowledgement of a document
Sep 24, 2019
Acknowledgement of a document
Sep 24, 2019
Annex to the communication - opposition
Sep 24, 2019
Information concerning oral proceedings
Sep 24, 2019
Summons to attend oral proceedings
Sep 24, 2019
Summons to attend oral proceedings
Jun 21, 2019
Brief communication - Opposition proceedings
Jun 11, 2019
(Electronic) Receipt
Jun 11, 2019
Auxiliary request during Opposition procedure
Jun 11, 2019
Auxiliary request during Opposition procedure
Jun 11, 2019
Auxiliary request during Opposition procedure - 01
Jun 11, 2019
Auxiliary request during Opposition procedure - 02
Jun 11, 2019
Letter accompanying subsequently filed items
Jun 11, 2019
Reply of the patent proprietor to the notice(s) of opposition
Mar 25, 2019
Submission concerning change of applicant's representative
Feb 1, 2019
Communication of a notice of opposition and request to file observations
Feb 1, 2019
Notice of further oppositions to opponent(s)
Jan 28, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
Citation in opposition procedure - 001
Jan 18, 2019
Citation in opposition procedure - 002
Jan 18, 2019
Citation in opposition procedure - 003
Jan 18, 2019
Citation in opposition procedure - 004
Jan 18, 2019
Consolidated list of cited opposition documents
Jan 18, 2019
Notice of opposition
Jan 18, 2019
Notice of opposition
Jun 11, 2018
Communication of the registration of a transfer or change of name and/or address
Jun 1, 2018
Submission concerning change of applicant's name
Apr 30, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 22, 2018
Decision to grant a European patent
Mar 5, 2018
(Electronic) Receipt
Mar 5, 2018
Filing of the translations of the claims
Mar 5, 2018
Letter accompanying subsequently filed items
Feb 14, 2018
Bibliographic data of the European patent application
Feb 14, 2018
Communication about intention to grant a European patent
Feb 14, 2018
Intention to grant (signatures)
Feb 14, 2018
Text intended for grant (clean copy)
Feb 14, 2018
Text intended for grant (version for approval)
Feb 12, 2018
Communication of amended entries concerning the representative
Feb 9, 2018
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 7, 2018
Submission concerning change of applicant's representative
Jan 12, 2018
(Electronic) Receipt
Jan 12, 2018
Amended claims with annotations
Jan 12, 2018
Amended description with annotations
Jan 12, 2018
Claims
Jan 12, 2018
Description
Jan 12, 2018
English translation of the claims
Jan 12, 2018
German translation of the claims
Jan 12, 2018
Letter accompanying subsequently filed items
Jan 12, 2018
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Sep 15, 2017
Bibliographic data of the European patent application
Sep 15, 2017
Communication about intention to grant a European patent
Sep 15, 2017
Intention to grant (signatures)
Sep 15, 2017
Text intended for grant (clean copy)
Sep 15, 2017
Text intended for grant (version for approval)
Feb 28, 2017
(Electronic) Receipt
Feb 28, 2017
Amended claims with annotations
Feb 28, 2017
Claims
Feb 28, 2017
Letter accompanying subsequently filed items
Feb 28, 2017
Reply to communication from the Examining Division
Dec 21, 2016
Grant of extension of time limit (examination procedure)
Dec 13, 2016
(Electronic) Receipt
Dec 13, 2016
Letter accompanying subsequently filed items
Dec 13, 2016
Request for extension of time limit to communication from the Examining Division
Sep 1, 2016
Annex to the communication
Sep 1, 2016
Communication from the Examining Division
Aug 24, 2016
Examination started
Jan 5, 2010
Final instructions (loss of partial rights)
Sep 24, 2009
Designation deemed to be withdrawn (non payment of designation fees)
Mar 26, 2009
(Electronic) Receipt
Mar 26, 2009
Letter accompanying subsequently filed items
Feb 25, 2009
Amended description filed after receipt of (European) search report
Feb 25, 2009
Amended description filed after receipt of (European) search report
Feb 25, 2009
Amendments received before examination
Feb 23, 2009
Amended description filed after receipt of (European) search report
Feb 23, 2009
Amendments received before examination
Feb 23, 2009
Description
Feb 23, 2009
Letter accompanying subsequently filed items
Feb 20, 2009
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jan 28, 2009
Refund order search fee
Jan 19, 2009
Communication regarding the transmission of the European search report
Jan 19, 2009
European search opinion
Jan 19, 2009
European search report
Jul 28, 2008
General enquiry
Jan 8, 2008
Letter concerning the inventor
Jan 2, 2008
Notification of forthcoming publication
Nov 28, 2007
Invitation to indicate correct address of inventor
Nov 8, 2007
Letter which had not been notified
Aug 14, 2007
Communication for party to proceedings/third party
Jul 10, 2007
Abstract
Jul 10, 2007
Claims
Jul 10, 2007
Description
Jul 10, 2007
Designation of inventor
Jul 10, 2007
Drawings
Jul 10, 2007
Letter concerning search matters
Jul 10, 2007
Request for grant of a European patent

EP1881182

SAFRAN AIRCRAFT ENGINES

Application Number: EP07290865A
Filing Date: Jul 10, 2007
Status: Patent Maintained As Amended; Jan 28, 2022
Publication Date: Mar 2, 2022
External Links: Slate, Register , Google Patents