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Expired Canadian patentCanada

Dialing method of radio mobile telephone

CA 2175305 C · Owner: Go, Sung-Jin · Inventors: Go, Sung-Jin

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 method for controlling a telephone conversation in a radio mobile telephone system and more particularly, to a method capable of automatically dialing inputted dial information. The dialing method for a radio mobile telephone includes the steps of: (a) detecting whether or not key data is inputted and analyzing inputted key data upon input of key data; (b) standing by for the input of next key data after storing inputted key data when a result analyzed in step (a) is key data corresponding to a telephone number (c) repeating steps (a) and (b) by returning to step (a) when next key data is inputted within a designated period of time in step (b); and (d) …

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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 April 29, 1996 and granted March 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1996
GrantedMarch 14, 2000
Term endedApril 29, 2016
Patent numberCA 2175305 C
Classification (IPC)H04M1/27 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 29, 1996Patent grantedMarch 14, 2000Term endedApril 29, 2016

Sources & verification

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