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CA 2119086 C · Owner: Mitel Networks Corporation · Inventors: Gray, Thomas A.; Pinard, Deborah L.

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

The present invention relates to a method of informing an agent of a follow-up call to the agent from a telephone subscriber comprised of on receiving the follow-up call from the telephone subscriber detecting, that the agent is busy, storing a callback number of the telephone subscriber, storing at least part of a message provided by the telephone subscriber in association with the callback number, determining the identity of a specific agent to which the call is to be directed and, routing the message and the callback number to the specific agent when the specific agent becomes free.

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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 March 15, 1994 and granted June 16, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 15, 1994
GrantedJune 16, 1998
Term endedMarch 15, 2014
Patent numberCA 2119086 C
Classification (IPC)H04M3/50 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMarch 15, 1994Patent grantedJune 16, 1998Term endedMarch 15, 2014

Sources & verification

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