Geographical database for radio system
CA 2299278 A1 · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Brohoff, Hakan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A geographical database connected to a mobile radio network (10) contains information about consumer services within the network (10) and about a plurality of geographic areas into which the service area of the network (10) is divided. When a mobile station (19) seeks to obtain information from the database by entering one or more search key words the network (10) determines , the current geographic location of the mobile station (19) within the network (10). Both the search keys and the mobile station's current location are used to search the database and return to the mobile station (19) information about available consumer services in different zones made up of geographic areas …
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 August 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2020.
- 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.