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Optical Fiber Testing Device, Optical Fiber Manufacturing Device, Optical Fiber Testing Method, And Optical Fiber Manufacturing Method

Patent No. EP3435073 (titled "Optical Fiber Testing Device, Optical Fiber Manufacturing Device, Optical Fiber Testing Method, And Optical Fiber Manufacturing Method") was filed by Sumitomo Electric Industries on Mar 24, 2017. The application was issued on Aug 20, 2025.

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Sep 2, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 24, 2025
Decision to grant a European patent
Jul 16, 2025
(Electronic) Receipt
Jul 16, 2025
Filing of the translations of the claims
Jul 16, 2025
French translation of claims
Jul 16, 2025
German translation of the claims
Jul 16, 2025
Letter accompanying subsequently filed items
May 8, 2025
Annex to the communication about intention to grant a European patent
May 8, 2025
Bibliographic data of the European patent application
May 8, 2025
Communication about intention to grant a European patent
May 8, 2025
Intention to grant (signatures)
May 8, 2025
Text intended for grant (clean copy)
May 8, 2025
Text intended for grant (version for approval)
Aug 14, 2023
(Electronic) Receipt
Aug 14, 2023
Amended claims with annotations
Aug 14, 2023
Claims
Aug 14, 2023
Letter accompanying subsequently filed items
Aug 14, 2023
Reply to communication from the Examining Division
Apr 12, 2023
Annex to the communication
Apr 12, 2023
Communication from the Examining Division
Dec 24, 2021
(Electronic) Receipt
Dec 24, 2021
Amended claims with annotations
Dec 24, 2021
Claims
Dec 24, 2021
Letter accompanying subsequently filed items
Dec 24, 2021
Reply to communication from the Examining Division
Aug 25, 2021
Annex to a communication
Aug 25, 2021
Annex to the communication
Aug 25, 2021
Communication from the Examining Division
Aug 17, 2021
Examination started
Mar 2, 2020
(Electronic) Receipt
Mar 2, 2020
Amended claims filed after receipt of (European) search report
Mar 2, 2020
Amended claims with annotations
Mar 2, 2020
Amended description filed after receipt of (European) search report
Mar 2, 2020
Amended description with annotations
Mar 2, 2020
Amendments received before examination
Mar 2, 2020
Letter accompanying subsequently filed items
Oct 15, 2019
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Sep 26, 2019
Communication regarding the transmission of the European search report
Sep 26, 2019
Document annexed to the Extended European Search Report
Sep 26, 2019
Document annexed to the Extended European Search Report
Sep 26, 2019
Document annexed to the Extended European Search Report
Sep 26, 2019
Document annexed to the Extended European Search Report
Sep 26, 2019
Document annexed to the Extended European Search Report
Sep 26, 2019
European search opinion
Sep 26, 2019
Information on Search Strategy
Sep 26, 2019
Supplementary European search report
Sep 13, 2019
Search started
Jan 4, 2019
Notification of forthcoming publication
Oct 31, 2018
Communication regarding possible amendment of the application/payment of claims fee
Oct 29, 2018
Communication to designated inventor
Oct 29, 2018
Communication to designated inventor
Oct 29, 2018
Communication to designated inventor
Oct 24, 2018
Brief communication to applicant/representative
Oct 10, 2018
(Electronic) Receipt
Oct 10, 2018
Abstract
Oct 10, 2018
Claims
Oct 10, 2018
Copy of the international preliminary report on patentability
Oct 10, 2018
Description
Oct 10, 2018
Drawings
Oct 10, 2018
Request for entry into the European phase
Oct 10, 2018
Translation of the international preliminary report on patentability
Aug 1, 2018
Information on entry into European phase
Oct 17, 2017
Priority document (electronically transmitted)
Sep 28, 2017
Copy of the international search report
Sep 28, 2017
Copy of the translated international search report
Sep 28, 2017
International publication pamphlet

EP3435073

SUMITOMO ELECTRIC INDUSTRIES

Application Number: EP17770442A
Filing Date: Mar 24, 2017
Status: Granted And Under Opposition; Jul 18, 2025
Publication Date: Aug 20, 2025
External Links: Slate, Register , Google Patents