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Expired Canadian patentCanada

Framework of media-independent pre-authentication improvements

CA 2894329 C · Owner: Kabushiki Kaisha Toshiba · Inventors: Taniuchi, Kenichi; Ohba, Yoshihiro; Dutta, Ashutosh

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Abstract From the Canadian patent

The preferred embodiments herein relate to methods and systems for controlling a handoff decision related to switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework and/or to methods and systems for mitigating effects of undesired switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework.

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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 July 13, 2006 and granted October 10, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 13, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 13, 2006
GrantedOctober 10, 2017
Term endedJuly 13, 2026
Patent numberCA 2894329 C
Classification (IPC)H04W36/32 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 13, 2006Patent grantedOct 10, 2017Term endedJuly 13, 2026

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