Method and apparatus for detecting fraud or theft in a gaming machine
CA 2180237 C · Owner: Kloss, Hans Gerhard · Inventors: Heidel, Raymond John; Kloss, Hans Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gaming machine has internal coin container sensors (110 112) that sense, the weight, and therefore the number of coins contained in the internal coin containers, (104, 106). The gaming machine also has mechanical and/or optical sensors (102, 114), to monitor the inflow and outflow of coins. By comparing the number of coins as, determined by weight, with the number of coins detected by the mechanical and/or optical, sensors, fraud is readily detected.
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 June 28, 1996 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 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.