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Expired Canadian patentCanada

System and method for registration and packet data reconnect

CA 2597477 C · Owner: Chaudry, Shahid R. · Inventors: Willey, William Daniel; Chaudry, Shahid R.; Islam, M. Khaledul

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, mobile stations and networks are provided that cause a packet data service reconnect to be performed automatically after the occurrence of an event triggering registration, even in some circumstances where such a data service reconnect would not normally occur. This avoids complications that can arise due to the packet data service being discontinued upon registration and the resulting inability to reach the mobile station.

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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 February 13, 2006 and granted June 16, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 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.
FiledFebruary 13, 2006
GrantedJune 16, 2015
Term endedFebruary 13, 2026
Patent numberCA 2597477 C
Classification (IPC)H04W60/04

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 13, 2006Patent grantedJune 16, 2015Term endedFeb 13, 2026

Sources & verification

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