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Expired Canadian patentCanada

Methods and apparatus for limiting communication capabilities in mobile communication devices

CA 2697574 C · Owner: Research In Motion Limited · Inventors: Islam, M. Khaledul; Jin, Xin

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Abstract From the Canadian patent

Methods and apparatus for limiting communication capabilities in mobile communication devices are disclosed. In one illustrative example an operating variable of a mobile communication device is detected to be within one of a first range of values a second range of values, and a third range of values. The mobile device operates in a full communication state if the operating variable is detected to be within the first range of values a first limited communication state if the operating variable is detected to be within the second range of values or a second limited communication state if the operating variable is detected to be within the third range of values. When receiving a communication …

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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 9, 2004 and granted March 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 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 9, 2004
GrantedMarch 25, 2014
Term endedNovember 9, 2024
Patent numberCA 2697574 C
Classification (IPC)H04W48/02 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 9, 2004Patent grantedMarch 25, 2014Term endedNov 9, 2024

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