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Expired Canadian patentCanada

Authentication system and method based upon random partial digitized path recognition

CA 2579826 C · Owner: Mizrah, Len L. · Inventors: Mizrah, Len L.

CIPO record

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Abstract From the Canadian patent

An authentication server (1030) provides a clue to a client (1010) indicating a random partial subset of a full pattern that characterizes a full digitized path on a frame of reference, and the client enters a data to fulfill an authentication factor suggested by the clue. The full pattern consists of an ordered set of data fields, which store parameters that specify the full digitized path on a reference grid for recognition. The server presents an instance of a graphical representation of the frame of reference including an , array of random indicators at data field coordinates in the frame of reference (3050). The server accepts indicators from the array of indicators at data …

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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 September 9, 2004 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.
FiledSeptember 9, 2004
GrantedDecember 18, 2012
Term endedSeptember 9, 2024
Patent numberCA 2579826 C
Classification (IPC)H04L9/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 9, 2004Patent grantedDec 18, 2012Term endedSep 9, 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.