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Expired Canadian patentCanada

Position detection and location tracking in a wireless network

CA 2638754 C · Owner: Gray, Matthew K. · Inventors: Peden, Jeffrey J. Ii; Gray, Matthew K.; Chery, Yonald

CIPO record

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

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Abstract From the Canadian patent

A locale simulator, for use in defining the placement of access points (APs) within an area monitored by a wireless device location and tracking system including a network having a plurality of APs is provided. The simulator has one or more computing devices and a set of storage devices coupled to the computing devices. The storage devices include various parameters including area data AP data and wireless device data. The locale simulator also has a simulation module hosted on the computing device, and configured to generate a digital area model and determine placement of the APs within the digital area model as a function of the AP data and the wireless device data.

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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 September 5, 2002 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 5, 2002
GrantedApril 2, 2013
Term endedSeptember 5, 2022
Patent numberCA 2638754 C
Classification (IPC)H04W16/18 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedSep 5, 2002Patent grantedApril 2, 2013Term endedSep 5, 2022

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