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Expired Canadian patentCanada

Internet-enabled voice-response service

CA 2238226 C · Owner: Strahs, Lee B. · Inventors: Strahs, Lee B.

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 method and system of providing a remote user with access to a voice response unit, which allows Internet users to access voice response units using a web graphical interface. In one aspect the present invention includes an, Internet telephone services node which includes a web server, communicatively coupled to a client computer system of the remote user a, voice switch initiating a call to a voice response unit responsive to a signal, from the web server a touch-tone generator generating a touch-tone signal responsive to a signal from the web server and transmitting the touch-tone, signal to the voice response unit through the voice switch and an audio streaming server receiving an audio …

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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 May 21, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 21, 1998
GrantedDecember 23, 2003
Term endedMay 21, 2018
Patent numberCA 2238226 C
Classification (IPC)H04L12/16 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 21, 1998Patent grantedDec 23, 2003Term endedMay 21, 2018

Sources & verification

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