Wireless debit card system and method
CA 2107865 C · Owner: Schilling, Donald L. · Inventors: Schilling, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless debit card communications system comprising a radio unit a base station, and an end station. The radio unit for example, a radio telephone, includes a first processor a reader for reading a credit amount and a personal access number from a debit card and a transceiver for communicating, using radio waves a credit signal. The base station receives and relays the credit signal over a communications channel to the end station. The end station includes a switch to generate a first control signal to allocate the credit amount of the debit card to the radio unit and to set a radio unit access number of the radio unit to the personal access number of the debit card with a communications …
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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 October 6, 1993 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2015.
- 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.