System for permitting access to data field area in ic card for multiple services
CA 1298653 C · Owner: Ogasawara, Nobuo · Inventors: Ogasawara, Nobuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for permitting access to a data field area in an IC card for multiple services using an individual card holder identification number for each of a plurality of data fields or for each group of data fields. Data field identification information, a personal identification number, access qualification information and, an authentication code are supplied to the IC card before an execution of an access to the data field. An authentication is made between the personal identification number and the authentication code stored in the IC card for the selected data field and the personal, identification number and the authentication code supplied to the IC card. Based on the result of the …
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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
- 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.