Coded information processing method and device for bar codes and intelligent cards
CA 2173542 C · Owner: Haddad, Aneace · Inventors: Chevalier, Bernard; Haddad, Aneace
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Considered is a device and treatment process for coded information. The device includes the means (6 9) to read data coded in a chip card (7) the means (2) to read bar codes (3) reproduced on an item and the means (10) to compare the information read to information stored concerning a series of pre-determined items. It also includes the means to process the results of these comparisons and the means (10) to write to the memory in the chip card of information about, on the one hand, the results of these comparisons and on the other hand about the purchase date, the means to read the data and write the information to the chip card designed for at least two different types of chip cards (7) …
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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 April 4, 1996 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2018.
- 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.