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Expired Canadian patentCanada

Method and system for supporting portable authenticators on electronic devices

CA 2463379 C · Owner: Brown, Michael S. · Inventors: Tapuska, David F.; Little, Herbert A.; Adams, Neil P.

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Systems and methods are provided for facilitating access to an electronic device. Password information is stored on the electronic device and on a portable authenticator. W hen a user attempts to access the electronic device the user is prompted to enter a password at the electronic device. The portable authenticator determines the validity of the entered password. The electronic device receives the results of the validity determination from the portable authenticator and provides access to the electronic device based on the received validity determination.

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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 April 7, 2004 and granted December 6, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 2004
GrantedDecember 6, 2016
Term endedApril 7, 2024
Patent numberCA 2463379 C
Classification (IPC)G06F21/34 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 7, 2004Patent grantedDec 6, 2016Term endedApril 7, 2024

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