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Expired Canadian patentCanada

Remote transaction system

CA 1315871 C · Owner: Walker, Mark E. · Inventors: Walker, Mark E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A remote transaction system is disclosed which may be used to conduct business transactions wherein visual contact between a buyer and a seller is desired or required. A transaction booth is located remotely from an operations center, the booth and the center being connected by audio and video communication lines. The booth includes audio and video equipment for transmitting and receiving audio and video signals between the booth and the center. Decoders are provided in the booth to receive telephone touch tones or pulses from the operations center and to control the audio and video equipment and other equipment in the booth. Alternatively a programmable device, such as a controller or …

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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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 15, 1987
GrantedApril 6, 1993
Term endedApril 6, 2010
Patent numberCA 1315871 C
Classification (IPC)H04M11/00 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 15, 1987Patent grantedApril 6, 1993Term endedApril 6, 2010

Sources & verification

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