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Twin-Spool Turbojet Engine Having A Low-Pressure Shaft Thrust Bearing Positioned In The Exhaust Casing

Patent No. EP3673164 (titled "Twin-Spool Turbojet Engine Having A Low-Pressure Shaft Thrust Bearing Positioned In The Exhaust Casing") was filed by Safran Aircraft Engines on Aug 24, 2018. The application was issued on Apr 3, 2024.

Patent Summary

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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 13, 2022	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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Mar 7, 2024
Decision to maintain the European patent in amended form
Mar 7, 2024
Decision to maintain the European patent in amended form
Feb 28, 2024
(Electronic) Receipt
Feb 28, 2024
English translation of the claims
Feb 28, 2024
Filing of the translation of the amended claims
Feb 28, 2024
German translation of the claims
Feb 28, 2024
Letter accompanying subsequently filed items
Dec 12, 2023
Communication of bibliographic data
Dec 12, 2023
Communication to opponent concerning maintenance
Dec 12, 2023
Communication with request to file translations
Dec 5, 2023
Maintenance of the patent with the documents specified in the final decision
Dec 1, 2023
Refund of fees
Nov 29, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 29, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 24, 2023
(Electronic) Receipt
Nov 24, 2023
Composition of the board (T)
Nov 24, 2023
Letter accompanying subsequently filed items
Nov 24, 2023
Withdrawal of an appeal
Sep 29, 2023
F3204 Communication of the file number to the parties
Sep 29, 2023
F3204 Communication of the file number to the parties
Sep 25, 2023
(Electronic) Receipt
Sep 25, 2023
Letter accompanying subsequently filed items
Sep 25, 2023
Notice of appeal
Jul 24, 2023
Advice of delivery
Jul 14, 2023
Annex to the communication - opposition
Jul 14, 2023
Decision of the Opposition Division and instruction
Jul 14, 2023
Druckexemplar in opposition procedure
Jul 14, 2023
Grounds for the decision (Annex) - opposition
Jul 14, 2023
Interlocutory decision in opposition proceedings
Jul 14, 2023
Interlocutory decision in opposition proceedings
Jul 14, 2023
Means of redress
Jul 14, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 14, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 14, 2023
Provision of a copy of the minutes - opposition procedure
Jul 14, 2023
Provision of a copy of the minutes - opposition procedure
Jul 14, 2023
Scanned annex to a communication - opposition procedure
Jul 14, 2023
Scanned annex to a communication - opposition procedure
Jul 14, 2023
Scanned annex to a communication - opposition procedure
Jul 14, 2023
Scanned annex to a communication - opposition procedure
Jul 14, 2023
Scanned annex to a communication - opposition procedure
Jul 14, 2023
Transmittal of decision / summons - opposition
Jul 14, 2023
Transmittal of decision / summons - opposition
Jun 9, 2023
Information about the result of oral proceedings
Apr 18, 2023
Information concerning oral proceedings
Apr 18, 2023
Scanned annex to a communication - opposition procedure
Apr 18, 2023
Summons to attend oral proceedings
Apr 18, 2023
Summons to attend oral proceedings
Apr 18, 2023
Transmittal of decision / summons - opposition
Apr 18, 2023
Transmittal of decision / summons - opposition
Apr 17, 2023
Brief communication - Opposition proceedings
Apr 14, 2023
Notification concerning the date of oral proceedings
Apr 14, 2023
Notification concerning the date of oral proceedings
Apr 11, 2023
Brief communication - Opposition proceedings
Apr 6, 2023
(Electronic) Receipt
Apr 6, 2023
Information concerning oral proceedings
Apr 6, 2023
Letter accompanying subsequently filed items
Apr 6, 2023
Notification concerning the date of oral proceedings
Apr 6, 2023
Notification concerning the date of oral proceedings
Apr 6, 2023
Scanned annex to a communication - opposition procedure
Apr 6, 2023
Summons to attend oral proceedings
Apr 6, 2023
Summons to attend oral proceedings
Apr 6, 2023
Transmittal of decision / summons - opposition
Apr 6, 2023
Transmittal of decision / summons - opposition
Apr 6, 2023
Written submission in preparation to/during oral proceedings
Apr 4, 2023
(Electronic) Receipt
Apr 4, 2023
Oral proceedings: Request for postponement
Mar 30, 2023
(Electronic) Receipt
Mar 30, 2023
Oral proceedings: Request for postponement
Mar 16, 2023
(Electronic) Receipt
Mar 16, 2023
Letter accompanying subsequently filed items
Feb 24, 2023
(Electronic) Receipt
Feb 24, 2023
Brief communication - Opposition proceedings
Feb 24, 2023
Letter accompanying subsequently filed items
Feb 16, 2023
(Electronic) Receipt
Feb 16, 2023
Brief communication - Opposition proceedings
Feb 16, 2023
Letter accompanying subsequently filed items
Feb 16, 2023
Written submission in preparation to/during oral proceedings
Feb 8, 2023
(Electronic) Receipt
Feb 8, 2023
Request for interpreters during oral proceedings
Feb 3, 2023
Notification concerning the date of oral proceedings
Feb 3, 2023
Notification concerning the date of oral proceedings
Nov 9, 2022
Advice of delivery
Nov 8, 2022
(Electronic) Receipt
Nov 8, 2022
Advice of delivery
Nov 8, 2022
Letter accompanying subsequently filed items
Nov 3, 2022
(Electronic) Receipt
Nov 3, 2022
Advice of delivery
Nov 3, 2022
Oral proceedings: Request for postponement
Oct 31, 2022
Annex to the communication - opposition
Oct 31, 2022
Information concerning oral proceedings
Oct 31, 2022
Summons to attend oral proceedings
Oct 31, 2022
Summons to attend oral proceedings
Oct 31, 2022
Transmittal of decision / summons - opposition
Oct 31, 2022
Transmittal of decision / summons - opposition
Oct 18, 2022
Brief communication - Opposition proceedings
Oct 7, 2022
(Electronic) Receipt
Oct 7, 2022
Letter accompanying subsequently filed items
Oct 7, 2022
Letter regarding the opposition procedure (no time limit)
Jun 1, 2022
Brief communication - Opposition proceedings
May 24, 2022
(Electronic) Receipt
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure - 01
May 24, 2022
Auxiliary request during Opposition procedure - 02
May 24, 2022
Auxiliary request during Opposition procedure - 03
May 24, 2022
Auxiliary request during Opposition procedure - 04
May 24, 2022
Letter accompanying subsequently filed items
May 24, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jan 28, 2022
Communication of a notice of opposition and request to file observations
Jan 28, 2022
Notice of further oppositions to opponent(s)
Jan 19, 2022
Communication of a notice of opposition - first information to patent proprietor
Jan 13, 2022
(Electronic) Receipt
Jan 13, 2022
Citation in opposition procedure - 001
Jan 13, 2022
Citation in opposition procedure - 002
Jan 13, 2022
Citation in opposition procedure - 003
Jan 13, 2022
Citation in opposition procedure - 004
Jan 13, 2022
Citation in opposition procedure - 005
Jan 13, 2022
Consolidated list of cited opposition documents
Jan 13, 2022
Notice of opposition
Jan 13, 2022
Notice of opposition
Apr 28, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 18, 2021
Decision to grant a European patent
Mar 3, 2021
(Electronic) Receipt
Mar 3, 2021
English translation of the claims
Mar 3, 2021
Filing of the translations of the claims
Mar 3, 2021
German translation of the claims
Mar 3, 2021
Letter accompanying subsequently filed items
Jan 13, 2021
Bibliographic data of the European patent application
Jan 13, 2021
Communication about intention to grant a European patent
Jan 13, 2021
Intention to grant (signatures)
Jan 13, 2021
Text intended for grant (clean copy)
Jan 13, 2021
Text intended for grant (version for approval)
Nov 30, 2020
Examination started
Sep 15, 2020
(Electronic) Receipt
Sep 15, 2020
Amended description filed after receipt of (European) search report
Sep 15, 2020
Amended description with annotations
Sep 15, 2020
Amendments received before examination
Sep 15, 2020
Letter accompanying subsequently filed items
Jun 4, 2020
Notification on forthcoming publication of bibliographic data
Apr 3, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Apr 1, 2020
Communication to designated inventor
Apr 1, 2020
Communication to designated inventor
Apr 1, 2020
Communication to designated inventor
Apr 1, 2020
Communication to designated inventor
Apr 1, 2020
Communication to designated inventor
Apr 1, 2020
Communication to designated inventor
Mar 28, 2020
Priority search results copy provided by EPO
Mar 25, 2020
(Electronic) Receipt
Mar 25, 2020
Request for entry into the European phase
Mar 10, 2020
Copy of the international preliminary report on patentability
Jan 8, 2020
Information on entry into European phase
Mar 20, 2019
Priority document (electronically transmitted)
Feb 28, 2019
Copy of the international search report
Feb 28, 2019
Copy of the international search report
Feb 28, 2019
Published international application - A1
Oct 15, 2018
ISR: cited documents
Oct 15, 2018
International Search Report - copy in English for the IB
Oct 12, 2018
Written opinion of the ISA, boxes No. I to VIII
Oct 12, 2018
Written opinion of the ISA, cover sheet
Oct 12, 2018
Written opinion of the ISA, supplemental box
Oct 2, 2018
Notification of receipt of Search copy
Sep 22, 2018
Abstract
Sep 22, 2018
Claims
Sep 22, 2018
Description
Sep 22, 2018
Drawings
Sep 22, 2018
Request form for international application (copy for ISA/EP)

EP3673164

SAFRAN AIRCRAFT ENGINES

Application Number: EP18769757A
Filing Date: Aug 24, 2018
Status: Patent Maintained As Amended; Mar 1, 2024
Publication Date: Apr 3, 2024
External Links: Slate, Register , Google Patents