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Expired Canadian patentCanada

Method and system to connect an unanswered forwarded communication directly to a voice mail service

CA 2273586 C · Owner: Malik, Dale W. · Inventors: Malik, Dale W.

CIPO record

Overview

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

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Abstract From the Canadian patent

Methods and systems in a telecommunications system having a call forwarding service to connect an unanswered forwarded communication directly to a voice mail service of the called party. Upon notice that a communication for a subscriber has gone unanswered at a forwarded location, a call is placed to a code followed by voice mail information. As the call is routed, the code is recognized and the voice mail information is parsed into call instructions including a voice mail directory number as the redirected number. The call is further routed based on the call instructions until a recognition of the designated directory number in the call instructions results in call termination …

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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 June 2, 1999 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 2, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 2, 1999
GrantedNovember 26, 2002
Term endedJune 2, 2019
Patent numberCA 2273586 C
Classification (IPC)H04M3/42 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJune 2, 1999Patent grantedNov 26, 2002Term endedJune 2, 2019

Sources & verification

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