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US5010995A Expired / Lapsed US ⏱️ 0.0 years remaining

Slot machine

Assignee: Universal Entertainment Corp
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Filing: 1987-09-15
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Granted: 1991-04-30
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Expires: 2007-09-15
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Abstract

Abstract A slot machine of the type having a plurality of rotatable reels, each bearing an annular row of various symbols on the outer surface thereof, which selects combinations of symbols at random during each game, and which awards prize coins when predetermined prize-winning combinations of symbols occur on prize-winning rows previously selected. For selectively designating prize-winning rows, the slot machine is provided with push buttons which also start the rotation of the reels.

Inventors

  • 👤 Kazuo Okada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 00:48
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/32; G07F17/34

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 215 words
In a slot machine including a plurality of adjacent lengthwise movable series of different symbols, means for selecting combinations of symbols at random during a game, and means for awarding prize coins when predetermined combinations of symbols result on prize-winning rows of symbols, the improvement which comprises (a) means for sensing the insertion of at least one coin in the machine, said sensing means producing a signal for each coin inserted; (b) counter means for counting the signals from said sensing means; (c) display means providing a visual indication of a positive content of said counter means; (d) means for initiating the lengthwise movement of said plurality of series to produce random combinations of symbols in a plurality of horizontal rows; and (e) a plurality of player-actuated pushbuttons which are operable when a positive content of said counter is indicated on said display means, the operation of one of which simultaneously (1) designates at least one of said horizontal rows of symbols as a prize-winning row; (2) actuates said movement initiating means to initiate movement of said series; and (3) decreases the content of said counter means in accordance with the number of horizontal rows designated, at least two of said pushbuttons each designating a different combination of plural prize-winning rows prior to each game.
Claim 2
Dependent Claim 215 words
In a slot machine including a plurality of adjacent lengthwise movable series of different symbols, means for selecting combinations of symbols at random during a game, and means for awarding prize coins when predetermined combinations of symbols result on prize-winning rows of symbols, the improvement which comprises (a) means for sensing the insertion of at least one coin in the machine, said sensing means producing a signal for each coin inserted; (b) counter means for counting the signals from said sensing means; (c) display means providing a visual indication of a positive content of said counter means; (d) means for initiating the lengthwise movement of said plurality of series to produce random combinations of symbols in a plurality of horizontal rows; and (e) a plurality of player-actuated pushbuttons which are operable when a positive content of said counter is indicated on said display means, the operation of one of which simultaneously (1) designates at least one of said horizontal rows of symbols as a prize-winning row; (2) actuates said movement initiating means to initiate movement of said series; and (3) decreases the content of said counter means in accordance with the number of horizontal rows designated, at least two of said pushbuttons each designating a different combination of plural prize-winning rows prior to each game.
Claim 3
Dependent Claim 21 words
Apparatus as defined in claim 1, wherein said pushbuttons selectively assign center, upper and lower transverse horizontal rows as prize-winning rows.
Claim 4
Dependent Claim 31 words
Apparatus as defined in claim 2, where said plurality of pushbuttons comprise three pushbuttons for selecting center, center and upper, and center, upper and lower transverse rows, respectively, as prize-winning rows.
Claim 5
Dependent Claim 144 words
A slot machine of the type having a plurality of lengthwise movable series of different symbols, means to select combinations of symbols at random during each game, and means to award prize coins when predetermined prize-winning combinations occur on prize-winning rows of symbols, comprising (a) player-actuated means for designating any selected one of a plurality of combinations of plural prize-winning rows prior to each game, wherein said each combination has different number of said prize-winning rows in such a way that a combination with larger number of the prize-winning rows has all rows which another combination with smaller number of the prize-winning rows has; and (b) means for starting the lengthwise movement of said series, said means for starting the lengthwise movement of said series operating to start the lengthwise movement of said series responsive to actuation by the player of said designating means.
Claim 6
Dependent Claim 144 words
A slot machine of the type having a plurality of lengthwise movable series of different symbols, means to select combinations of symbols at random during each game, and means to award prize coins when predetermined prize-winning combinations occur on prize-winning rows of symbols, comprising (a) player-actuated means for designating any selected one of a plurality of combinations of plural prize-winning rows prior to each game, wherein said each combination has different number of said prize-winning rows in such a way that a combination with larger number of the prize-winning rows has all rows which another combination with smaller number of the prize-winning rows has; and (b) means for starting the lengthwise movement of said series, said means for starting the lengthwise movement of said series operating to start the lengthwise movement of said series responsive to actuation by the player of said designating means.

References Cited (Backward Citations)

GB1348309A Cited
US4023704A Cited
GB1582942A Cited
GB2078419A Cited
GB2106682A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-04-29 1994-10-29 1995-04-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-04-29 1998-10-29 1999-04-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-04-29 2002-10-29 2003-04-30 $7700.00 Window Closed / Lapsed

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