Patent Yard Sign in
Expired Canadian patentCanada

Automatic call forwarding

CA 2180684 C · Owner: Mitel Corporation · Inventors: Erb, Paul

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A method of forwarding calls, comprises storing a list of possible forwarding destinations for each subscriber maintaining a behaviour database for each subscriber indicating the probable location of the subscriber at any particular time, and forwarding incoming calls to the probable location determined from the behaviour database. The behaviour database is dynamically updated according to the success rate of the forwarded calls.

Read the whole patent

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 July 8, 1996 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 8, 1996
GrantedAugust 21, 2001
Term endedJuly 8, 2016
Patent numberCA 2180684 C
Classification (IPC)H04M3/54 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 8, 1996Patent grantedAug 21, 2001Term endedJuly 8, 2016

Sources & verification

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