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Expired Canadian patentCanada

System and method for providing advanced intelligent network services

CA 2176477 C · Owner: Telcordia Technologies, Inc. · Inventors: Orriss, Richard Allan

CIPO record

Overview

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Abstract From the Canadian patent

In a telephone network, customized advanced intelligent network (AIN) services are provided to standard IN/1 "800" service customers. An IN/1 service switching point (IN/1 SSP) (130) receives a call directed to the standard IN/1 "800" service customer (112) and generates, an "800" query to an "800" services data base (156). An "800" service control point ("800" SCP) (150) generates an "800" response containing a carrier identification code and the IN/1 SSP routes the call via a trunk group designated by the carrier identification code. An AIN-equipped service switching point (AIN SSP) (126) then generates an AIN query to an AIN service data base (174). In response an AIN-equipped service …

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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 December 2, 1994 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 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.
FiledDecember 2, 1994
GrantedMay 4, 1999
Term endedDecember 2, 2014
Patent numberCA 2176477 C
Classification (IPC)H04M3/42 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedDec 2, 1994Patent grantedMay 4, 1999Term endedDec 2, 2014

Sources & verification

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