Apparatus and method for handling card
CA 2029042 C · Owner: Sanyo Electric Co. Ltd. · Inventors: Kobayashi, Yuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A card handling apparatus includes a reader/writer incorporated in a vending machine, and the reader/writer reads the encoded data representative of a present value which is written in a first recording portion of a prepaid card, in accordance with decoding data recorded in a second recording portion of the card Thereafter, the inspection data representative of a residual value of "0" is encoded in accordance with another encoding method and written in the first recording portion of the card for recording the value data after a payment for a price of a sold item. The inspection data as written is read again to be compared with the inspection data intended to be written. If the both are not …
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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 31, 1990 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2012.
- 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.