Communication device having a position registration in a multiple services communication system
CA 2194840 C · Owner: Hazama, Kaori · Inventors: Hazama, Kaori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The communication device according to the present invention outputs data as to whether position registration to a cellular service has succeeded or failed to a position registration control section using a transmission path. The communication device also outputs data as to whether position registration to a satellite service has succeeded or failed to the control section using a transmission path. The control section receives and records a result of position registration in each service and then outputs data, when a service to be provided to a user is switched, as to where position registration in the service is required or not, using a transmission path to a multiple service switching …
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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 January 10, 1997 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2019.
- 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.