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Resin Composition, Prepreg, Laminate, Metal Foil-Clad Laminate, Printed Wiring Board, And Multilayer Printed Wiring Board

Patent No. EP3733746 (titled "Resin Composition, Prepreg, Laminate, Metal Foil-Clad Laminate, Printed Wiring Board, And Multilayer Printed Wiring Board") was filed by Mitsubishi GAS Chemical on Dec 25, 2018. The application was issued on Aug 27, 2025.

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Sep 9, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 31, 2025
Decision to grant a European patent
Jul 21, 2025
(Electronic) Receipt
Jul 21, 2025
Filing of the translations of the claims
Jul 21, 2025
French translation of claims
Jul 21, 2025
German translation of the claims
Jul 21, 2025
Letter accompanying subsequently filed items
Apr 8, 2025
Annex to the communication about intention to grant a European patent
Apr 8, 2025
Bibliographic data of the European patent application
Apr 8, 2025
Communication about intention to grant a European patent
Apr 8, 2025
Intention to grant (signatures)
Apr 8, 2025
Text intended for grant (clean copy)
Apr 8, 2025
Text intended for grant (version for approval)
Mar 13, 2025
(Electronic) Receipt
Mar 13, 2025
Amended claims with annotations
Mar 13, 2025
Amended description with annotations
Mar 13, 2025
Claims
Mar 13, 2025
Description
Mar 13, 2025
Letter accompanying subsequently filed items
Mar 13, 2025
Reply to communication from the Examining Division
Nov 15, 2024
Annex to the communication
Nov 15, 2024
Communication from the Examining Division
Nov 11, 2024
Examination started
Feb 4, 2022
(Electronic) Receipt
Feb 4, 2022
Amended claims filed after receipt of (European) search report
Feb 4, 2022
Amended claims with annotations
Feb 4, 2022
Amendments received before examination
Feb 4, 2022
Letter accompanying subsequently filed items
Dec 7, 2021
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Nov 17, 2021
Communication regarding the transmission of the European search report
Nov 17, 2021
European search opinion
Nov 17, 2021
Information on Search Strategy
Nov 17, 2021
Supplementary European search report
Sep 29, 2021
(Electronic) Receipt
Sep 29, 2021
Amended claims with annotations
Sep 29, 2021
Claims
Sep 29, 2021
Letter accompanying subsequently filed items
Sep 29, 2021
Reply to the invitation to clarify the claims/the subject matter of the application
Aug 2, 2021
Annex to the communication
Aug 2, 2021
Invitation to indicate the subject-matter to be searched
Oct 7, 2020
Notification of forthcoming publication
Oct 6, 2020
Invitation to indicate correct address of inventor
Oct 1, 2020
Letter which had not been notified
Aug 4, 2020
Communication regarding possible amendment of the application/payment of claims fee
Jul 31, 2020
Communication to designated inventor
Jul 31, 2020
Communication to designated inventor
Jul 31, 2020
Communication to designated inventor
Jul 31, 2020
Communication to designated inventor
Jul 31, 2020
Communication to designated inventor
Jul 13, 2020
Copy of the international preliminary report on patentability
Jul 13, 2020
Translation of the international preliminary report on patentability
Jul 2, 2020
(Electronic) Receipt
Jul 2, 2020
Abstract
Jul 2, 2020
Claims
Jul 2, 2020
Description
Jul 2, 2020
Drawings
Jul 2, 2020
Request for entry into the European phase
May 8, 2020
Information on entry into European phase
Jul 23, 2019
Priority document (electronically transmitted)
Jul 4, 2019
Copy of the international search report
Jul 4, 2019
Copy of the translated international search report
Jul 4, 2019
International publication pamphlet

EP3733746

MITSUBISHI GAS CHEMICAL

Application Number: EP18894398A
Filing Date: Dec 25, 2018
Status: Granted And Under Opposition; Jul 25, 2025
Publication Date: Aug 27, 2025
External Links: Slate, Register , Google Patents