Method and apparatus for registering the electronic location of a mobile cellular communications device
CA 2403729 A1 · Owner: Comer, Edward I. · Inventors: Britain, David J.; Comer, Edward I.; Evans, Thomas F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Identifying and registering the electronic location of a mobile data reporting device (MDRD) operating within the paging areas of a cellular mobile radiotelephone (CMR) system. The MDRD travels freely between CMR systems and is operative to communicate selected data collected from data sources to a data service provider via control channels of the CMR system. The location registration system enables the data collection system to transmit a data message to the mobile data reporting device via the control channels of the particular CMR system within the paging areas of which the MDRD resides. Each MDRD contains a list of System Identification Numbers that identify CMR systems that …
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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 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2023.
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Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.