Dual-function information-carrying sheet device
CA 1296800 C · Owner: Yokokawa, Jun · Inventors: Yokokawa, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION, "DUAL-FUNCTION INFORMATION-CARRYING SHEET DEVICE" ABSTRACT OF THE DISCLOSURE, A dual-function information carrying sheet device comprising a digital data storage medium for storing digital data electrical contacts and an interface through which data is to be stored into or fetched from the digital data storage medium and a visual information record medium on which visual information associated with the data stored or to be stored in the digital data storage medium is recorded.
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 March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 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.