Location system and mobile communication device
CA 2301159 A1 · Owner: Kumamoto, Katsuhiko · Inventors: Kumamoto, Katsuhiko; Koshima, Hiroaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile communication device that can communicate with a center station by using a PHS, is mounted on a vehicle, and includes a vibration detection unit. When the device is set in a theft search mode and the vehicle movement is detected by the vibration detection unit the device measures the electric , field intensity of a base station nearby and sends the result of measurement to the center station that manages vehicles. Therefore the system can detect , that a vehicle has been stolen and track and locate the moving position of the vehicle.
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 5, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2020.
- 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.