Call prepayment in a telecommunication system
CA 2336392 A1 · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Nilsson, Patrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and arrangement for paying through a cellular telecommunications system. The cellular telecommunications system comprises a user account providing a balance to a user and accessible through the telecommunications system, wherein the balance on the user account is deductible on request, and a switching centre through which the user is currently communicating by means of a mobile station. The method comprises a step of transmitting a balance information from the user account to the database of the switching centre the user is currently communicating with.
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 June 25, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2021.
- 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.