Transaction authentication
CA 2479219 A1 · Owner: British Telecommunications Public Limited Company · Inventors: Chapman, James Christopher Tydd; Edwards, Nicholas Hector; Gifford, Maurice Merrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a transaction authorisation arrangement a sales point (1) (an electronic point of sale device or a vending machine for example) communicates with a , transaction application (2) transmitting thereto a transaction value. The telephony platform (3) reserves one of a series of premium rate numbers (5) which can be dialled up by a mobile telephone user to authorise the charging of the transaction against the telephone bill. When a call is received at the premium rate number the telephony platform notifies the transaction application which then authorises the sale.
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 March 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2025.
- 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.