Method of communication in mobile radio systems
CA 2025229 C · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Akerberg, Dag E:Son
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of communication in at least one cellular mobile radio system in an environment of additional mobile radio systems with mobile stations capable of communication with more than one of the systems on any of a predetermined group of radio channels not all systems being capable and allowed to use all of the radio channels in the predetermined group wherein all base, stations transmit on at least one of the radio channels in the group information regarding system and base identity and the channels of the system, wherein a mobile station is prevented from transmitting on any of the radio channels until after receiving information on base and system identity and the channels of the …
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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 September 12, 1990 and granted April 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2012.
- 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.