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Expired Canadian patentCanada

Authentication system and method thereof in a communication system

CA 2608261 C · Owner: Song, Jun-Hyuk · Inventors: Lee, Ji-Cheol; Song, Jun-Hyuk

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Abstract From the Canadian patent

An authentication method and system in a communication system are provided. An MS, a BS and an AAA server acquire a first MSK by a first EAP authentication for the MS in an EAP-in-EAP scheme. After the first EAP authentication they , acquire a second MSK by a second EAP authentication for the MS in the EAP-in- EAP scheme.

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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 June 30, 2006 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 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.
FiledJune 30, 2006
GrantedSeptember 25, 2012
Term endedJune 30, 2026
Patent numberCA 2608261 C
Classification (IPC)H04L9/14

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 30, 2006Patent grantedSep 25, 2012Term endedJune 30, 2026

Sources & verification

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