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Expired Canadian patentCanada

Transaction system security method and apparatus

CA 2026739 C · Owner: Neckyfarow, Steven William · Inventors: Arnold, Todd Weston; Rohland, William Stanley; Neckyfarow, Steven William

CIPO record

Overview

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

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Abstract From the Canadian patent

An improved security system is disclosed which uses an IC card to enhance the security functions involving component authentication, user verification user, authorization and access control protection of message, secrecy and integrity management of cryptographic keys, and auditablity. Both the security method and the apparatus for embodying these functions across a total system or network using a common cryptographic architecture are disclosed. Authorization to perform these functions in the various security component device nodes in the network can be distributed to the various nodes at which they will be executed in order to personalize the use of the components.

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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 October 2, 1990 and granted June 4, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 2, 1990
GrantedJune 4, 1996
Term endedOctober 2, 2010
Patent numberCA 2026739 C
Classification (IPC)G06F12/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 2, 1990Patent grantedJune 4, 1996Term endedOct 2, 2010

Sources & verification

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