Signature Verification

Patent No. EP4052148 (titled "Signature Verification") was filed by Microsoft Technology Licensing on Oct 9, 2020. The application was issued on Sep 7, 2022.

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
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Oct 8, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 28, 2025
Decision to grant a European patent
May 28, 2025
Annex to the communication about intention to grant a European patent
May 28, 2025
Bibliographic data of the European patent application
May 28, 2025
Communication about intention to grant a European patent
May 28, 2025
Intention to grant (signatures)
May 28, 2025
Text intended for grant (clean copy)
May 28, 2025
Text intended for grant (version for approval)
Apr 30, 2025
(Electronic) Receipt
Apr 30, 2025
Amended claims with annotations
Apr 30, 2025
Amended description with annotations
Apr 30, 2025
Claims
Apr 30, 2025
Description
Apr 30, 2025
Letter accompanying subsequently filed items
Apr 30, 2025
Reply to communication from the Examining Division
Jan 8, 2025
Annex to the communication
Jan 8, 2025
Communication from the Examining Division
Dec 20, 2024
Examination started
Aug 10, 2022
Notification on forthcoming publication of bibliographic data
Jul 13, 2022
(Electronic) Receipt
Jul 13, 2022
Amended claims filed after receipt of (European) search report
Jul 13, 2022
Amended claims with annotations
Jul 13, 2022
Amended description filed after receipt of (European) search report
Jul 13, 2022
Amended description with annotations
Jul 13, 2022
Amendments received before examination
Jul 13, 2022
Letter accompanying subsequently filed items
Jun 8, 2022
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
May 16, 2022
Copy of the international preliminary report on patentability
Mar 28, 2022
Information regarding early processing
Mar 22, 2022
(Electronic) Receipt
Mar 22, 2022
Request for entry into the European phase
Mar 11, 2022
Information on entry into European phase
May 25, 2021
Priority document (electronically transmitted)
May 6, 2021
Copy of the international search report
May 6, 2021
Published international application - A1
Dec 11, 2020
ISR: cited documents
Dec 11, 2020
Written opinion of the ISA, boxes No. I to VIII
Dec 11, 2020
Written opinion of the ISA, cover sheet
Dec 11, 2020
Written opinion of the ISA, supplemental box
Nov 10, 2020
Notification of receipt of Search copy
Oct 27, 2020
Abstract
Oct 27, 2020
Annex
Oct 27, 2020
Annex
Oct 27, 2020
Claims
Oct 27, 2020
Description
Oct 27, 2020
Drawings
Oct 27, 2020
Request form for international application (copy for ISA/EP)

EP4052148

MICROSOFT TECHNOLOGY LICENSING

Application Number: EP20797954A
Filing Date: Oct 9, 2020
Status: Intended To Grant; May 27, 2025
Publication Date: Sep 7, 2022
External Links: Slate, Register , Google Patents

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EP4052148