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Expired Canadian patentCanada

System and method for authorizing the activation of a communication device

CA 2487194 C · Owner: Graves, Phillip Craig · Inventors: Graves, Phillip Craig; Smith, Merrill Brooks

CIPO record

Overview

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

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Abstract From the Canadian patent

A system and method for authorizing the activation of a communication device is provided. A request to activate a communication device is received by a communication service provider. The communication service provider or a central processor determines whether the communication device was validly sold in a purchase transaction. Alternately the communication service provider can outsource the determining step to a central processor. The communication service provider or central processor determines whether to activate the communication device based on the determining action.

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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 November 5, 2004 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2024.
  • 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.
FiledNovember 5, 2004
GrantedApril 16, 2013
Term endedNovember 5, 2024
Patent numberCA 2487194 C
Classification (IPC)H04L12/16 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 5, 2004Patent grantedApril 16, 2013Term endedNov 5, 2024

Sources & verification

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