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Canadian application, no grantCanada

Voice-enabled user interface for voicemail systems

CA 2435434 A1 · Owner: Mason, Makani · Inventors: Mason, Makani; Willesen, Jon; Nam, Don-Kyun

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 voice-enabled user interface (110) and method for enabling a user that is providing audio and vocal input to access data from telephone service systems (140) that are only responsive to dual tone multi-frequency ("DTMF") signals. A user accesses the voice-enabled user interface (110) with a telephone device (120) and provides input that is translated into a DTMF translation that can be recognized by DTMF telephone service system (140). A template of the voiceenabled user interface (110) maps menu states prompts, and acceptable inputs , of the DTMF telephone service system. The template also monitors (170) the current state of the telephone service system at all times. The invention …

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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 January 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 2002
GrantedNo grant recorded
Term endedJanuary 18, 2022
Patent numberCA 2435434 A1
Classification (IPC)H04M1/64 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 18, 2002Term endedJan 18, 2022

Sources & verification

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