A system for monitoring and locating people and objects
CA 2496255 A1 · Owner: Hathiram, Daraius · Inventors: Anderson, Nicholas; Hathiram, Daraius; Cummings, Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method, computer program product and system (100) for monitoring and locating an object using secure communications without relying on GPS. A monitoring (101) device may activate a monitored unit (102) (unit monitored by monitoring device (101) by transmitting a seed of an algorithm and a time synchronization to the monitored unit (102). The seed and time synchronization may be used in conjunction with an algorithm e.g. frequency hopping table, stored in both the monitoring device (101) and the monitored unit (102) to , allow both the monitoring device (101) and the monitored unit (102) to communicate with one another at a uniquely synchronized time and frequency thereby making it …
Read the whole patent
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 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.