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Expired Canadian patentCanada

Apparatus and method for authenticating a user when accessing to multimedia services

CA 2532538 C · Owner: Telefonaktiebolaget Lm Ericsson (Publ) · Inventors: Walker Pina, John Michael; Sanchez Herrero, Juan Antonio

CIPO record

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Abstract From the Canadian patent

The present invention provides an inter-domain authentication mechanism carrying out a cross-domain authentication for a given user between an access network domain and a Multimedia domain this inter-domain authentication , mechanism being simpler than the currently existing one and applicable where , a user has been authenticated by the access network.Therefore there is a new , feature provided in accordance with the invention namely an "Implicit , Authentication for Multimedia domain" which may be implemented as a dedicated Multimedia Authentication device in close co-operation with a subscriber server, or be fully integrated in said subscriber server.To this end there is , provided a …

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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 August 26, 2003 and granted February 16, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 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.
FiledAugust 26, 2003
GrantedFebruary 16, 2016
Term endedAugust 26, 2023
Patent numberCA 2532538 C
Classification (IPC)H04L9/32 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 26, 2003Patent grantedFeb 16, 2016Term endedAug 26, 2023

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