Coin-distinguishing method and apparatus therefor
CA 2102839 C · Owner: Furuya, Yonezo · Inventors: Furuya, Yonezo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a, coin-identifying method that is fast and that can reject any counterfeit coin that closely resembles a genuine coin or a counterfeit coin that has a distribution that partially overlaps into a genuine-coin identification region, without reducing the acceptance ratio of genuine coins. It also provides an inexpensive apparatus that utilizes this method. The method and apparatus of the present invention perform a identification in which a first region is set to define a comparison reference for values measured by a first sensor and a second sensor that detect characteristics of a coin, a second region is set in such a manner as to partially overlap the first …
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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 November 10, 1993 and granted May 12, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2015.
- 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
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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.