Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method for testing the administration of network based supplementary services

CA 2213324 C · Owner: Eng, Ellen · Inventors: Baker, Albert D.; Eng, Ellen; Davidson, Charles L.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Whether or not the provisioning of a given BRI is properly administered is determined by providing a collection of processes which exercise the known network provided supplementary services in a predetermined fashion. Specifically a predetermined, i.e. algorithmic, process is employed to examine an administration database to determine which DSLs are to support supplementary services and then, the process invokes a plurality, of processes which attempt to activate the expected supplementary service. The basic mode of operation is to generate a connectivity context in which the supplementary service can be invoked and, then, cause the service to be invoked. ISDN messages are transmitted to …

Read the whole patent

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 August 18, 1997 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 1997
GrantedFebruary 6, 2001
Term endedAugust 18, 2017
Patent numberCA 2213324 C
Classification (IPC)H04L12/24 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedAug 18, 1997Patent grantedFeb 6, 2001Term endedAug 18, 2017

Sources & verification

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