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Expired Canadian patentCanada

Automatic call distribution system with an isdn compatible call connection system and method

CA 2103205 C · Owner: Holtaway, Thomas S. · Inventors: Surma, Richard S.; Holtaway, Thomas S.; Dezonno, Anthony J.

CIPO record

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

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Abstract From the Canadian patent

An automatic call distributor system (28) with an automatic call distributor (20) for selectively interconnecting telephonic calls from external telephonic units (32) of an external telephonic network (34) to a plurality of Integrated Services Digital Network (ISDN) interior telephonic units (30) with ISDN characteristics and a microprocessor (50) in the ISDN telephonic unit (30) for controlling the ISDN telephonic unit (30) to alter and enhance performance characteristics of the ISDN telephonic unit (30) in an automatic call distribution environment.

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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 November 16, 1993 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1993
GrantedJanuary 11, 2000
Term endedNovember 16, 2013
Patent numberCA 2103205 C
Classification (IPC)H04L12/52 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedNov 16, 1993Patent grantedJan 11, 2000Term endedNov 16, 2013

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