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Expired Canadian patentCanada

Method for detecting illegal modifications made to manufacturer software

CA 2552447 C · Owner: Thales · Inventors: Erny, Marie-Francoise; Breton, Sebastien

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

The invention relates to a method enabling the detection and/or prevention of illegal modifications made to a manufacturer software in the field of a GSM system comprising a hard core and a soft core a local data interface, and having at least the following steps: A) when the signal received on the local data interface of the terminal is not valid placing the GSM terminal in a non-operational state; B) the signal is a disconnecting signal on the local data interface or when there is no signal, initiating a secured start-up procedure with the execution of the control functions: Autotest of the hard core: if the autotest is OK test the integrity of the soft core; if this integrity is OK …

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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 December 15, 2004 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 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.
FiledDecember 15, 2004
GrantedMay 7, 2013
Term endedDecember 15, 2024
Patent numberCA 2552447 C
Classification (IPC)H04M1/72 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 15, 2004Patent grantedMay 7, 2013Term endedDec 15, 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.