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Canadian application, no grantCanada

Methods and systems for authentication of components in a graphics system

CA 2425478 A1 · Owner: Microsoft Corporation · Inventors: England, Paul; Wilt, Nicholas P.; Peinado, Marcus

CIPO record

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

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Abstract From the Canadian patent

Methods and-systems are provided for authenticating component(s) in connection with the use of a trusted graphics system. Techniques are provided for authenticating a, graphics card in connection with a system that cryptographically secures content routed, through a graphics pipeline such that an application or device can indicate to the trusted, graphics platform that the application or device is a trusted user of the trusted graphics, platform, and such that the graphics platform can communicate to the trusted application, or device that the graphics platform may be trusted by the application or device.

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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 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2025.
  • 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 15, 2003
GrantedNo grant recorded
Term endedApril 15, 2023
Patent numberCA 2425478 A1
Classification (IPC)G06F21/44 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 15, 2003Term endedApril 15, 2023

Sources & verification

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