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Expired Canadian patentCanada

Token mechanism with magnetic separation means

CA 1208518 A · Owner: Sintered Metals, Inc. · Inventors: Jaffe, Myron I.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A token which cannot be easily counterfeited by inexpensive methods and a simple token acceptance mechanism which will reject easily-made counterfeit tokens. The token is a disk-shaped object which has two sections along its axis. One section has a notched periphery and the second section has a smooth periphery. The notched section interacts with a pawl in the token acceptance mechanism and the smooth section interacts with an arm. The pawl and arm are interlocked so that only tokens which contain both the notched section and the smooth section are accepted. Therefore tokens which can be easily made by stamping or by turning on a lathe are not accepted by the mechanism. A chute with a …

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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

  • Granted July 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1982
GrantedJuly 29, 1986
Term endedJuly 29, 2003
Patent numberCA 1208518 A
Classification (IPC)G07D5/02

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedNov 16, 1982Patent grantedJuly 29, 1986Term endedJuly 29, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.