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Expired Canadian patentCanada

Mobile station location

CA 2498730 C · Owner: Jha, Sanjay K. · Inventors: Glazko, Serguei; Jacobs, Paul; Jha, Sanjay K.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A method for localizing a mobile station which in one embodiment is , characterized by: logging one or more wireless channels which belong to one or more network providers other than the mobile station's home network provider and which substantially currently provide communication with one or more discernable base stations; and establishing a geographic position of the mobile station by use of the one or more wireless channels which belong to the one or more network providers other than the mobile station's home network provider. In one or more various embodiments related systems include but are , not limited to circuitry and/or programming for effecting the foregoingreferenced …

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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 October 1, 2003 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 1, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 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.
FiledOctober 1, 2003
GrantedNovember 25, 2014
Term endedOctober 1, 2023
Patent numberCA 2498730 C
Classification (IPC)H04W64/00

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 1, 2003Patent grantedNov 25, 2014Term endedOct 1, 2023

Sources & verification

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