Combustion Chamber For A Gas Turbine Engine

Patent No. EP3240971 (titled "Combustion Chamber For A Gas Turbine Engine") was filed by Siemens on Oct 14, 2015. The application was issued on Jan 3, 2024.

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
ANSALDO ENERGIA SWITZERLAND	Nov 12, 2020	STUDIO TORTA

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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Dec 7, 2023
Decision to maintain the European patent in amended form
Dec 7, 2023
Decision to maintain the European patent in amended form
Nov 23, 2023
(Electronic) Receipt
Nov 23, 2023
French translation of claims
Nov 23, 2023
German translation of the claims
Nov 23, 2023
Letter accompanying subsequently filed items
Sep 12, 2023
Communication to opponent concerning maintenance
Sep 12, 2023
Communication with request to file translations
Aug 31, 2023
Maintenance of the patent with the documents specified in the final decision
Aug 31, 2023
Request concerning representative opponent
Aug 14, 2023
Refund of fees
Aug 7, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Aug 7, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Aug 2, 2023
(Electronic) Receipt
Aug 2, 2023
Composition of the board (T)
Aug 2, 2023
Letter accompanying subsequently filed items
Aug 2, 2023
Withdrawal of an appeal
Jul 12, 2023
F3204 Communication of the file number to the parties
Jul 12, 2023
F3204 Communication of the file number to the parties
Jun 29, 2023
(Electronic) Receipt
Jun 29, 2023
Letter accompanying subsequently filed items
Jun 29, 2023
Notice of appeal
Apr 19, 2023
(Electronic) Receipt
Apr 19, 2023
(Electronic) Receipt
Apr 19, 2023
Advice of delivery
Apr 19, 2023
Advice of delivery
Apr 19, 2023
Annex to the communication - opposition
Apr 19, 2023
Decision of the Opposition Division and instruction
Apr 19, 2023
Druckexemplar in opposition procedure
Apr 19, 2023
Grounds for the decision (Annex) - opposition
Apr 19, 2023
Interlocutory decision in opposition proceedings
Apr 19, 2023
Interlocutory decision in opposition proceedings
Apr 19, 2023
Letter accompanying subsequently filed items
Apr 19, 2023
Letter accompanying subsequently filed items
Apr 19, 2023
Means of redress
Apr 19, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 19, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 19, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 19, 2023
Provision of a copy of the minutes - opposition procedure
Apr 19, 2023
Provision of a copy of the minutes - opposition procedure
Apr 19, 2023
Scanned annex to a communication - opposition procedure
Apr 19, 2023
Scanned annex to a communication - opposition procedure
Apr 19, 2023
Transmittal of decision / summons - opposition
Apr 19, 2023
Transmittal of decision / summons - opposition
Feb 1, 2023
Letter accompanying subsequently filed items
Feb 1, 2023
Submission concerning change of applicant's address
Nov 22, 2022
Annex
Nov 22, 2022
Request concerning representative opponent
May 6, 2022
Information about the result of oral proceedings
Apr 14, 2022
Brief communication - Opposition proceedings
Apr 11, 2022
(Electronic) Receipt
Apr 11, 2022
Letter accompanying subsequently filed items
Apr 11, 2022
Written submission in preparation to/during oral proceedings
Mar 10, 2022
Brief communication - Opposition proceedings
Mar 4, 2022
(Electronic) Receipt
Mar 4, 2022
Letter accompanying subsequently filed items
Mar 4, 2022
Request for interpreters during oral proceedings
Mar 4, 2022
Written submission in preparation to/during oral proceedings
Feb 3, 2022
Brief communication - Opposition proceedings
Jan 31, 2022
(Electronic) Receipt
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure
Jan 31, 2022
Auxiliary request during Opposition procedure - 01
Jan 31, 2022
Auxiliary request during Opposition procedure - 02
Jan 31, 2022
Auxiliary request during Opposition procedure - 03
Jan 31, 2022
Auxiliary request during Opposition procedure - 04
Jan 31, 2022
Auxiliary request during Opposition procedure - 05
Jan 31, 2022
Auxiliary request during Opposition procedure - 06
Jan 31, 2022
Auxiliary request during Opposition procedure - 07
Jan 31, 2022
Auxiliary request during Opposition procedure - 08
Jan 31, 2022
Auxiliary request during Opposition procedure - 09
Jan 31, 2022
Letter accompanying subsequently filed items
Jan 31, 2022
Written submission in preparation to/during oral proceedings
Dec 15, 2021
Advice of delivery
Dec 9, 2021
Annex to the communication - opposition
Dec 9, 2021
Information concerning oral proceedings
Dec 9, 2021
Summons to attend oral proceedings
Dec 9, 2021
Summons to attend oral proceedings
Dec 9, 2021
Transmittal of decision / summons - opposition
Dec 9, 2021
Transmittal of decision / summons - opposition
Jan 25, 2021
Brief communication - Opposition proceedings
Jan 18, 2021
(Electronic) Receipt
Jan 18, 2021
Auxiliary request during Opposition procedure
Jan 18, 2021
Auxiliary request during Opposition procedure - 01
Jan 18, 2021
Letter accompanying subsequently filed items
Jan 18, 2021
Reply of the patent proprietor to the notice(s) of opposition
Dec 23, 2020
Communication of the registration of a transfer or change of name and/or address
Nov 24, 2020
Communication of a notice of opposition and request to file observations
Nov 24, 2020
Notice of further oppositions to opponent(s)
Nov 17, 2020
Communication of a notice of opposition - first information to patent proprietor
Nov 12, 2020
(Electronic) Receipt
Nov 12, 2020
Any annexes (other than citation) to an opposition letter
Nov 12, 2020
Citation in opposition procedure - 001
Nov 12, 2020
Citation in opposition procedure - 002
Nov 12, 2020
Citation in opposition procedure - 003
Nov 12, 2020
Citation in opposition procedure - 004
Nov 12, 2020
Citation in opposition procedure - 005
Nov 12, 2020
Citation in opposition procedure - 006
Nov 12, 2020
Citation in opposition procedure - 007
Nov 12, 2020
Citation in opposition procedure - 008
Nov 12, 2020
Consolidated list of cited opposition documents
Nov 12, 2020
International publication (Pamphlet)
Nov 12, 2020
Letter accompanying subsequently filed items
Nov 12, 2020
Notice of opposition
Nov 12, 2020
Notice of opposition
Feb 24, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 16, 2020
Decision to grant a European patent
Dec 27, 2019
(Electronic) Receipt
Dec 27, 2019
Filing of the translations of the claims
Dec 27, 2019
French translation of claims
Dec 27, 2019
German translation of the claims
Oct 7, 2019
Bibliographic data of the European patent application
Oct 7, 2019
Communication about intention to grant a European patent
Oct 7, 2019
Intention to grant (signatures)
Oct 7, 2019
Text intended for grant (clean copy)
Oct 7, 2019
Text intended for grant (version for approval)
Aug 26, 2019
Examination started
Mar 21, 2018
Refund of fees
Mar 5, 2018
(Electronic) Receipt
Mar 5, 2018
Amended claims filed after receipt of (European) search report
Mar 5, 2018
Amended claims with annotations
Mar 5, 2018
Amendments received before examination
Mar 5, 2018
Letter accompanying subsequently filed items
Oct 11, 2017
Notification on forthcoming publication of bibliographic data
Sep 13, 2017
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 8, 2017
Communication to designated inventor
Sep 8, 2017
Communication to designated inventor
Sep 6, 2017
Priority search results copy provided by EPO
Aug 8, 2017
Copy of the international preliminary report on patentability
Jul 31, 2017
Communication of the registration of a transfer or change of name and/or address
Jul 24, 2017
Submission concerning change of applicant's address
Jun 29, 2017
(Electronic) Receipt
Jun 29, 2017
Request for entry into the European phase
Jun 2, 2017
Information on entry into European phase
Aug 15, 2016
Priority document (electronically transmitted)
Jul 28, 2016
Copy of the international search report
Jul 28, 2016
Published international application - A1
Jan 29, 2016
Written opinion of the ISA, boxes No. I to VIII
Jan 29, 2016
Written opinion of the ISA, cover sheet
Jan 29, 2016
Written opinion of the ISA, supplemental box
Oct 22, 2015
Notification of the international application number and of the international filing date
Oct 14, 2015
(Electronic) Receipt
Oct 14, 2015
Abstract
Oct 14, 2015
Claims
Oct 14, 2015
Description
Oct 14, 2015
Document concerning fees and payments
Oct 14, 2015
Drawings
Oct 14, 2015
Electronic request for grant of an International application
Oct 14, 2015
Priority document (RO-procedure)

EP3240971

SIEMENS

Application Number: EP15780852A
Filing Date: Oct 14, 2015
Status: Patent Maintained As Amended; Dec 1, 2023
Publication Date: Jan 3, 2024
External Links: Slate, Register , Google Patents

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Combustion Chamber For A Gas Turbine Engine

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Dossier Documents

EP3240971