Point of sale activation and deactivation of pre-paid telephone calling cards
CA 2334405 A1 · Owner: Wu, Frank · Inventors: Bond, James Duke; Wu, Frank; Henderson, Karl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System (100) includes a PSTN (102), POS devices (credit card terminals etc.) , (104), additional POS (106) which are configured with dial up facilities POS , control system (105), switching control points (108) a customer service , center (110), a service data point (112) (central data stores for card state and usage data), a WAN system (114), a ANI server (116) and a WAN access , switch (118). During a point-of-sale transaction the POS system transmits a , request related to the pre-paid calling card via the communication network to the processing system. The processing system coupled to the service data point performs a transaction in accordance with the transaction request and …
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 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 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.