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Expired Canadian patentCanada

A communication network terminal supporting a plurality of applications

CA 2247449 C · Owner: Lietsalmi, Mikko · Inventors: Tarnanen, Teemu; Kaartinen, Kalevi; Decker, Peter

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 present invention relates to a terminal (1) for a communication network the terminal being capable of supporting a plurality of applications (17 18) , and having means of communicating user messages. The terminal comprises means for receiving user messages having data and a header relating to one of the applications (17, 18) and means (8) for addressing the data to a respective application according to the header. In an embodiment the user messages are short messages and the data comprises characters in the short message.

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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 21, 1997 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2019.
  • 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 21, 1997
GrantedApril 15, 2003
Term endedFebruary 21, 2017
Patent numberCA 2247449 C
Classification (IPC)H04L67/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 21, 1997Patent grantedApril 15, 2003Term endedFeb 21, 2017

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