Magnetic card and card reader apparatus utilizing a pseudo bar code and an address information code
CA 2127915 C · Owner: Tamura Electric Works, Ltd. · Inventors: Kawashima, Takumi; Sasou, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetic card incudes a magnetic layer a, bar code, a protection layer, and a pseudo bar code. The magnetic layer is formed on a substrate records, magnetic information, and reflects light. The bar code is formed on a predetermined area of the magnetic layer by a light absorption material and detected by no generation of reflected light from the magnetic layer. The protection layer is formed on the predetermined area of the magnetic layer and protects the bar code. The pseudo bar code is formed on the magnetic layer and intermingled with the bar code. A card reader apparatus using this magnetic card is also disclosed.
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
- Filed July 13, 1994 and granted March 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 13, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2016.
- 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.