Credit card verifier
CA 1291563 C · Owner: Trintech Limited · Inventors: Mcguire, John Finbarr
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A point-of-sale credit card verifier for checking the validity of cards, such as credit cards comprises means, for non-destructively storing information on invalid credit cards for comparison with information which is read from a card presented for use. The information on invalid credit cards is transmitted by signals embedded in a VHF stereo radio broadcast from a broadcast station which is received by a VHF receiver/demodulator. A credit card sensor and control maintains the verifier switched off unless a credit card is to be read. The verifier is switched on when information is about to be broadcast from a broadcast station. The verifier operates quickly and independently of …
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
- Granted October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.