Mobile communication terminal equipment usable for both satellite and terrestrial communications
CA 2118965 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Inoue, Seiya; Aoki, Katsuhiko; Tsuchiya, Makio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile communication terminal equipment is mounted in a vehicle such as automobile and can utilize both the satellite and terrestrial communication systems. The mobile communication terminal equipment includes a satellate transceiver and a portable set. The satellite transceiver has a satellite transmission/reception circuit. As required the portable set is disconnected from the satellite transceiver to be carried by the user. The portable set includes a terrestrial transmission/reception circuit, a signal input/output circuit and a connection selecting switch. The connection selecting switch is automatically controlled to connect the signal input/output circuit selectively to one of …
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 March 14, 1994 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.