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Expired Canadian patentCanada

System and method for secure control of resources of wireless mobile communication devices

CA 2838205 C · Owner: Blackberry Limited · Inventors: Little, Herbert A.; Yach, David P.; Shenfield, Michael

CIPO record

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Abstract From the Canadian patent

Systems and methods for secure control of a wireless mobile communication device are disclosed. Each of a plurality of domains includes at least one wireless mobile communication device asset. When a request to perform an operation affecting at least one of the assets is received it is determined whether the request is permitted by the domain that includes the at least one affected asset by determining whether the entity with which the request originated has a trust relationship with the domain for example. The operation is completed where it is permitted by the domain. Wireless mobile communication device assets include software applications persistent data, communication pipes, and …

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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 August 19, 2003 and granted October 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 19, 2003
GrantedOctober 28, 2014
Term endedAugust 19, 2023
Patent numberCA 2838205 C
Classification (IPC)H04W88/02 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 19, 2003Patent grantedOct 28, 2014Term endedAug 19, 2023

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