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Expired Canadian patentCanada

Method for populating a location information database used in the delivery of emergency and other location-based services in a voip environment

CA 2540276 C · Owner: Bce Inc. · Inventors: Crago, William Barry

CIPO record

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Abstract From the Canadian patent

A method of populating a location information database for use in providing a location-based service to a host device that is an endpoint of a logical connection between the host device and a network access server. The method comprises receiving from the host device over the logical connection a request for network access; assigning a logical identifier to the host device in response to the receiving; determining a physical location associated with the endpoint of the logical connection; creating an association between the logical identifier and the physical location; and storing the association in the location information database.

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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 20, 2006 and granted June 2, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 20, 2006
GrantedJune 2, 2015
Term endedMarch 20, 2026
Patent numberCA 2540276 C
Classification (IPC)H04W80/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 20, 2006Patent grantedJune 2, 2015Term endedMarch 20, 2026

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