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Expired Canadian patentCanada

Method and system for implementing intelligent telecommunication services utilizing self-sustaining, fault-tolerant object oriented architecture

CA 2233124 C · Owner: At&T Corp. · Inventors: Mahajan, Om Prakash; Visser, Eldred James; Lo, Ron

CIPO record

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Abstract From the Canadian patent

A set of multidimensional capabilities allows service-related data to be exchanged among and operate with different hardware platforms and software programs. A trigger based on the call request is received at a switching platform. The trigger activates a servicespecific object driver. The object driver is built by interacting with service objects. Once the object driver is built, the service objects are executed with call processing information based on the newly built object driver. During the entire process network, management functions are executed in a fault-tolerant fashion to ensure reliability.

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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 25, 1998 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2020.
  • 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 25, 1998
GrantedJanuary 16, 2001
Term endedMarch 25, 2018
Patent numberCA 2233124 C
Classification (IPC)H04Q3/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 25, 1998Patent grantedJan 16, 2001Term endedMarch 25, 2018

Sources & verification

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