Mobile satellite communication system with local and global network
CA 2203536 C · Owner: International Mobile Satellite Organization · Inventors: De Baere, Jan; Hart, Nicholas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communication system for communication with a plurality of mobile terminals the system comprising: a plurality of orbiting satellites; a plurality of earth stations arranged to communicate with the mobile users via the satellites; a plurality of gateway stations for interconnecting terrestrial equipment with the earth stations; a store for storing access data for said mobile terminals. The mobile terminals are divided into first and second categories, the store retaining corresponding different status information both said first and second categories communicating with said satellites. Also provided are first and second different communications channels between said gateway …
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 May 12, 1995 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2017.
- 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.