Patent Yard Sign in
Expired Canadian patentCanada

Centralized service control for a telecommunication system

CA 2492012 C · Owner: Susbilla, John T. · Inventors: Susbilla, John T.; Sbisa, Daniel Charles; Ramaswami, Rangarajan

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

A communication system (100) includes a switching system (101) and a service control system (110). The switching system (101) receives and processes a communication request to transfer a query message. The service control system (110) receives and processes the query message to generate and transfer a response message indicating a route. The service control system (110) processes the query message with multiple parallel functions to generate an action message and processes the action message to select the route. The switching system (101) receives and processes the response message indicating the route and transfers a communication using the route.

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 June 30, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 30, 2003
GrantedMay 15, 2012
Term endedJune 30, 2023
Patent numberCA 2492012 C
Classification (IPC)H04Q3/00 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJune 30, 2003Patent grantedMay 15, 2012Term endedJune 30, 2023

Sources & verification

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