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Expired Canadian patentCanada

Mediation of open advanced intelligent network interface by shared execution environment

CA 2189264 C · Owner: Bellsouth Corporation · Inventors: Weisser, Frank J. Jr.

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Abstract From the Canadian patent

A method of mediation of traffic across a particular interface between the Advanced Intelligent Network operated by a local exchange carrier and an outside, service provider is disclosed. The particular interface is defined between an application by a non-local exchange carrier service provider for some form of enhanced telephone service requiring use of the Advanced Intelligent Network and, a shared execution environment interpreter on the other side of the interface. Mediation is conducted by the shared execution interpreter that is run on a local, exchange carrier operated service control point. The shared execution interpreter, enforces sufficient rules so that the local exchange …

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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 21, 1995 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2017.
  • 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 21, 1995
GrantedNovember 16, 1999
Term endedMarch 21, 2015
Patent numberCA 2189264 C
Classification (IPC)H04Q3/66 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedMarch 21, 1995Patent grantedNov 16, 1999Term endedMarch 21, 2015

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