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Expired Canadian patentCanada

Method and circuit for setting dialing data in a wireless telephone

CA 1286809 C · Owner: Toki, Akio · Inventors: Toki, Akio

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

An information storing apparatus is provided in a radio telephone apparatus having a base unit coupled to a wired telephone line and a radio telephone set. The base unit includes a memory for storing telephone number information and line relay for making or breaking a speech path between the base unit and the wired telephone line. When a registration signal is transmitted from the radio telephone set, the base unit is disconnected from the wired telephone line to break the speech path. Thereafter if a dial signal, from the radio telephone set is received the received dial signal is, stored in the memory as the telephone number information used for a reduced dialog operation. If a calling …

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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

  • Granted July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 22, 1988
GrantedJuly 23, 1991
Term endedJuly 23, 2008
Patent numberCA 1286809 C
Classification (IPC)H04M1/72 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMarch 22, 1988Patent grantedJuly 23, 1991Term endedJuly 23, 2008

Sources & verification

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