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Expired Canadian patentCanada

Arrangement for efficiently updating status information of a network call-routing system

CA 2280335 C · Owner: Mathews, Eugene P. · Inventors: Mathews, Eugene P.; Flockhart, Andrew D.

CIPO record

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Abstract From the Canadian patent

Call centers (143-145) use an event-driven scheme (207) with a filter (366) to send status updates to an associated network call-routing system (150). The filter ensures that only minimal status changes are not reported to the network call-routing system. Each call center records (310) the status values (360-365) of different splits that it last sent to the call-routing system and sends a new status update only when a status value of a split has changed (306) by the split's corresponding threshold amount (380-385). On the one hand in large splits, the number of status-impacting events (such as call arrival call serviced, call abandon, agent login/logout etc.) is typically high, but the …

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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 August 17, 1999 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 17, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2021.
  • 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 17, 1999
GrantedJuly 23, 2002
Term endedAugust 17, 2019
Patent numberCA 2280335 C
Classification (IPC)H04Q3/66 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedAug 17, 1999Patent grantedJuly 23, 2002Term endedAug 17, 2019

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