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Expired Canadian patentCanada

System, method and program for user authentication, and recording medium on which the program is recorded

CA 2561906 C · Owner: Takehi, Masahiro · Inventors: Takehi, Masahiro

CIPO record

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Abstract From the Canadian patent

An illustrative embodiment presents a method for user authentication in a federated computing environment . The method includes a first method for recording server authentication information including: establishing a , trusting relationship between a first and second server obtaining an , authentication policy of the second server and registering the , authentication policy of the second server within the first server. The method includes a second method for registering new user authentication information of a new user, including: verifying that the new user authentication information conforms to an authentication policy of the first server, and registering the new user authentication …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 14, 2005 and granted March 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 2005
GrantedMarch 25, 2014
Term endedFebruary 14, 2025
Patent numberCA 2561906 C
Classification (IPC)G06F15/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 14, 2005Patent grantedMarch 25, 2014Term endedFeb 14, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.