Signalling radio service requirements
CA 2310346 A1 · Owner: Sivagnanasundaram, Sutha · Inventors: Costa, Mauro; Roberts, Michael; Sivagnanasundaram, Sutha
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of establishing transmissions to a mobile station in a cellular radio communications system is described comprising receiving a signal, originating a call at a switch and notifying a network accordingly with a paging, message, and supplying the paging message to the mobile station wherein an, indication of the radio service requirement is also provided with the paging message. Subsequently, only those cells which fulfil the radio service requirement need be measured, to determine which one is to be used.
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 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2022.
- 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.