A card for recording the number of game play media, a card dispensing device, and a card receiving device
CA 2119122 A1 · Owner: Kawashima, Kazunari · Inventors: Takemoto, Takatoshi; Kawashima, Kazunari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A card on which at least the number of game play media paid out to a player from a game machine is recorded and which is issued to the player. The card comprises a substrate (10b) and a recording portion (10c) disposed on the substrate for writing data. The recording portion (10c) is a layer made of a substance whose physical properties reversibly change by heating for visibly recording data by local heating according to a heating pattern corresponding to an image of data to be 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
- Filed October 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2014.
- 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.