Monitoring of charges debited to an account having an assigned limit
CA 2076433 C · Owner: Neilon, Robert Michael · Inventors: Neilon, Robert Michael; Mcchristian, David Caswell; Desmedt, William Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Charges and balances assignable to a credit card account are controlled and monitored by assigning a purchase limit to the card. More specifically, when a card is used to pay for a telephone call on a telecommunication network, the validity of the card is verified in for example, a network database and, the card record is examined for the presence of a purchase limit. If the card has a purchase limit, the network database determines the type of purchase limit whichapplies and if the balance is positive. If the balance is not positive and the purchase limit applicable does not authorize the extension of credit a denial, response is sent from the network database to an appropriate local …
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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 19, 1992 and granted August 18, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2014.
- 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.