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Expired Canadian patentCanada

Slot machine

CA 1291179 C · Owner: Kishishita, Ryutaro · Inventors: Kishishita, Ryutaro

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A slot machine has a wheel mechanism including a plurality of motors, a plurality of rotary shafts rotated about their respective axes by the driving forces of the motors, and symbol carrying members each having a relatively small radius of gyration and carrying a symbol on its visible surface. The symbol carrying members are spaced apart at equal intervals in at least three horizontal rows and at least three vertical columns. Accordingly the depth of the, casing frame of the slot machine can be reduced to a remarkable extent, and a player can immediately identify the winning line visually.

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1988
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1291179 C
Classification (IPC)G07F17/34 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMay 9, 1988Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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