GB2180087A - Gaming and amusement machines - Google Patents

Gaming and amusement machines Download PDF

Info

Publication number
GB2180087A
GB2180087A GB08617786A GB8617786A GB2180087A GB 2180087 A GB2180087 A GB 2180087A GB 08617786 A GB08617786 A GB 08617786A GB 8617786 A GB8617786 A GB 8617786A GB 2180087 A GB2180087 A GB 2180087A
Authority
GB
United Kingdom
Prior art keywords
machine
award
chance
jackpot
repeated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08617786A
Other versions
GB2180087B (en
GB8617786D0 (en
Inventor
Stephen Murray
Paul O'neill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
* BELL-FRUIT MANUFACTURING Co Ltd
Bell Fruit Manufacturing Co Ltd
Original Assignee
Bell Fruit Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB858518678A priority Critical patent/GB8518678D0/en
Application filed by Bell Fruit Manufacturing Co Ltd filed Critical Bell Fruit Manufacturing Co Ltd
Publication of GB8617786D0 publication Critical patent/GB8617786D0/en
Publication of GB2180087A publication Critical patent/GB2180087A/en
Application granted granted Critical
Publication of GB2180087B publication Critical patent/GB2180087B/en
Application status is Expired legal-status Critical

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F17/00Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports or amusements, e.g. casino games, online gambling or betting
    • G07F17/3244Payment aspects of a gaming system, e.g. payment schemes, setting payout ratio, bonus or consolation prizes

Abstract

In a gaming or amusement-with-prizes machine, following a surprise jackpot award given on rare random occasions at the start of a game or at the end of a non-winning game, the player is given a high-odds chance (e.g. fifty-fifty) directly on the following game of the award being repeated, and then, if the award is repeated, he is given another high-odds chance of the award being repeated again, and so on. The jackpot award, and each of the repeated awards, may be a jackpot prize or a feature which gives the chance of a jackpot prize, for example, a 'nudge' feature.

Description

SPECIFICATION Gaming and amusement machines This invention relates to gaming and amusement machines of the kind generally known as "fruit machines", in particular an "amusement-with-prizes" machine.

Currently there are, in fruit machines, numerous "features" which follow a non-winning spin ofthe reels, such as the chance of one or more nudges, or holds, orso-called "trails",which can build upto a possible chance of a jackpot. Indeed the value of prizes awarded in a given machine on the features in many cases exceeds that of the prizes awarded on the achievement of a winning line in the initial game.

It is also well-known, when a win is achieved in the initial game, to give the player a chance to gamble all orpartofhiswin on a "double-or-quits" basis, or sometimes on a more complicated basis.

The aim of the present invention is to offerthe player the possibility of winning a surprisejackpot which may be repeated. According to the invention weproposethat, notonly isthe playergiven asur- prisejackpot award on rare random occasions at the start of a game or at the end of a non-winning game, but, following such an award there is also a highodds chance (for example fifty-fifty) directly on the following game of the award being repeated, (with the same ora differentamount)andthen, ifthe award is repeated, there is yet another high-odds chance on the next game of the award being repeated again.This high-odds repeat sequence could even be continued indefinitely, so that in theory there is no limit to the number of awards given, although itwill be appreciated that the odds (assuming theyarefifty- fifty each time) of the award being repeated twice are only one in four, and ofthe award being repeated three times in succession they are only one in eight, and soon.

The surprise jackpot award, and each of the repeated awards, if given, may be a jackpot prize (achieved, for instance, by the reels being spun to a pre-arranged combination that awards a jackpot).

Alternatively, the su rprise jackpot awa rd, and each of the repeated awards, if given, may comprise a feature which gives a chance of a jackpot prize (for instance, a random orfixed number of nudges may be awarded oratimeperiod may besetwithin which the player has the opportunity of "nudging" the reels to a winning combination).

The value of the jackpot award g iven may be dif ferent on successive steps in the sequence, and could be on an increasing or decreasing scale.

The high-odds repeat sequence makes the machine more attractive to play since there is the possibility that a player can win several jackpot prizes in succession. Also the possibility that the player may be unexpectedly awarded a surprise jackpot or a surprise chance to win a jackpot increases the attractiveness ofthe machine.

It is to be appreciated that the high-odds chance of a jackpot award being repeated is considerably grea terthanthe random chance ofajackpot prize or feature being awarded during normal playofthe machine. This also encourages the player to con tinue playing the machine after he has gained a sur prisejackpot award. The high-odds chance may be approximately a fifty-fifty chance. Preferablythe high-odds chance is slightly less than a fifty-fifty ch ance (for example forty-nine -fifty-one).

The initiation of the awarding of a jackpot may be effected by the player pressing a special button (which is lit up when the chance is on offer, that is on a rare random occasion when a surprise award is given). However, the award, is preferably obtained by pressing the normal "start" button, and can only be done if the playeris already in credit. Likewise, if the offer comes up a second time, it only comes up if the player is in credit, and this applies each successivetime.

In a typical example, on rare occasions following a non-winning game (typicallyonce in 800 games),the insertion of a coin to start a first game results in a special panel being illuminated, indicating the such prisejackpot award. (If the player already has one or more game credits in the machine then the panel will light up on completion ofthe previous game). The player then knows that he will with certainty obtain a jackpot award of some level.In one em bodiment to obtain the surprise jackpot award he presses the "start" button and the reels will automatically be spun to halt at one of two possible pre-determined combinations resulting in a higherorlowerjackpot of, say, 3 or1 .00. In another embodimentthespe- cial panel may indicate that nudges are available as the surprise jackpot award, for instance on the basis of a settime periodwithin which the playerhasthe chance to "nudge" the reels to a jackpot prize. The maximum win obtainable from the nudges may be indicated on the machine.Following the surprise award, provided he is still in credit, there is an immediate forty-nine - fifty-one chance that the panel will be illuminated again, giving him eitherthe cer tainty of a fu rther jackpot or, the chance to nudge the reels to a jackpot. If he is not already in credit, there is still a forty-nine -fifty-one chance thatwhen he inserts a coin, a furtherjackpot prize or nudges will be offered. In the first embodiment, when the "start" button is pressed this again results in the reels spinning automatically to predetermined positions awarding a higher or lowerjackpotwhich may or may not be the same as the previous one.Directly on the next game there is a forty-nine -fifty-one chance of the panel lighting up yet again, and the process is repeated indefinitely until the machine reverts to a normal game.

In a modification, if, say, a 1 jackpot is awarded or gained by nudging, the player may be given the op portunityofgambling this to increase it at the risk of losing it altogether.

It will be understood thatthe term "surprise jack- pot award" as used herein refers broadly to any type of surprise jackpot prize orfeature. For instance the award may comprise the amount of coins, tokens or nudges indicated by an illuminated jackpot panel or byajackpot "meter" intheform ofan L.E.D. oran alphanumericdisplay,there being a high-oddschance of the same or a different amount being awarded directly on the next game. The award may even comprise a "wild reel feature" in which afterthe reels have been spun at least one ofthe symbols is illum inated to indicate that that reel is wild to produce a winning combination with the symbols on the other reels.Another possibility is that the award may comprise a hold feature in which, for example, one reel is held and the other reels automatically spin to a mat- ching winning combination. The essence ofthe pre- sent invention is that a surprise jackpot award is given and there is then a high odds chance ofthe award being repeated directly on the next game.

When we have spoken above ofjackpots and awards it will be understood that we specify no part icular lower limit, and the system accordingtothe invention could, if desired, be applied to relatively low awards. Also, where we have spoken of reels being spun, itwill be understood that we intend this term to cover also the known non-mechanical equivalent of reels, such as Panascope or video displays.

Again, the term "fruit machine" is intended to cover any machine in which a sequential display of an array of successive symbols is halted at random and certain resulting combinations of symbols arethen awarded prizes.

Claims (10)

1. A gaming or amusement-with-prizes machine ofthe kind known as afruit machine in which not only is the player given a surprise jackpot award, on rare random occasions, atthe start of a game orfollowing a non-winning game, but, following such an award, there is also a high-odds chance directly on thefollowing game of the award being repeated, and then, if the award is repeated, there is another high-odds chance on the next game of the award being repeated again.
2. A machine as claimed in claim 1 in which the high-odds chance is approximately a fifty-fifty ch ance.
3. A machine as claimed in claim 2 in which the high-odds chance is slightly less than a fifty-fifty ch ance.
4. A machine as claimed in any of claims 1 to 3 in whioh the jackpot award and each of the repeated awards, if given, comprises a jackpot prize.
5. A machine as claimed in claim 4 in which the jackpot prize is achieved by the reels being spun to a pre-arranged combination that awards a jackpot.
6. A machine as claimed in any of claims 1 to 3 in whichthejackpotaward, and each oftherepeated awards, if given, comprises a feature which gives the chance of a jackpot prize.
7. A machine as claimed in claim 6 in which the feature giving the chance of a jackpot prize is a nudge feature.
8. A machine as claimed in claim 7 in which an award can only be repeated if the player is in credit, or if not in credit, when a coin is inserted into the machine.
9. A machine as claimed in claim 8 in which the jackpot award, or each ofthe repeated awards, if given, is obtained by the player pressing the normal "start" button.
10. A machine as claimed in any preceding claim in which the rare random occasions when the player is given a surprisejackpotaward occur app- roximately once in 800 games.
GB8617786A 1985-07-24 1986-07-21 Gaming and amusement machines Expired GB2180087B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB858518678A GB8518678D0 (en) 1985-07-24 1985-07-24 Gaming & amusement machines

Publications (3)

Publication Number Publication Date
GB8617786D0 GB8617786D0 (en) 1986-08-28
GB2180087A true GB2180087A (en) 1987-03-18
GB2180087B GB2180087B (en) 1989-08-09

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GB858518678A Pending GB8518678D0 (en) 1985-07-24 1985-07-24 Gaming & amusement machines
GB8617786A Expired GB2180087B (en) 1985-07-24 1986-07-21 Gaming and amusement machines

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Cited By (40)

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Publication number Priority date Publication date Assignee Title
GB2204436A (en) * 1987-03-06 1988-11-09 Barcrest Ltd Entertainment machines
GB2214389A (en) * 1988-01-08 1989-08-31 James Phillips Mccann Video Brag Game Machine with Higher-Lower Gamble Feature
US5067712A (en) * 1989-02-02 1991-11-26 Hilton Nevada Corporation Multiple-pull slot machine
US5580309A (en) * 1994-02-22 1996-12-03 Sigma Game, Inc. Linked gaming machines having a common feature controller
EP0874337A1 (en) * 1997-04-23 1998-10-28 Wms Gaming, Inc. Gaming machine with bonus mode
US6033307A (en) * 1998-03-06 2000-03-07 Mikohn Gaming Corporation Gaming machines with bonusing
US6159097A (en) * 1999-06-30 2000-12-12 Wms Gaming Inc. Gaming machine with variable probability of obtaining bonus game payouts
US6159098A (en) * 1998-09-02 2000-12-12 Wms Gaming Inc. Dual-award bonus game for a gaming machine
US6190255B1 (en) 1998-03-24 2001-02-20 Wms Gaming Inc. Bonus game for a gaming machine
US6203429B1 (en) 1997-04-23 2001-03-20 Wms Gaming Inc. Gaming machine with bonus mode
US6234897B1 (en) 1997-04-23 2001-05-22 Wms Gaming Inc. Gaming device with variable bonus payout feature
US6315660B1 (en) 1998-03-24 2001-11-13 Wms Gaming Inc. Gaming machines with board game theme
US6358147B1 (en) 1999-06-23 2002-03-19 Wms Gaming Inc. Gaming machine with multiple payoff modes and award presentation schemes
US6443837B1 (en) 1999-05-26 2002-09-03 Wms Gaming Inc. Bonus games for gaming machines with strategy options
US6609975B1 (en) * 1997-08-25 2003-08-26 Thomas E. Sawyer Electronic system and method for operating an incentive auxiliary game
US6800027B2 (en) 2000-03-31 2004-10-05 Wms Gaming Inc. System and method for saving status of paused game of chance
US7753773B2 (en) 2005-08-26 2010-07-13 Igt Gaming device having physical concentric symbol generators which are operable to provide a plurality of different games to a player
AU2006203760B2 (en) * 2005-09-09 2011-02-03 Igt Gaming device having game with cascading wild symbols
US7922573B2 (en) 2003-09-12 2011-04-12 Igt Gaming device having concentric reels including an outer reel with display areas having different sizes and positions
US8105151B2 (en) 2008-07-02 2012-01-31 Igt Gaming system, gaming device and method for providing cascading symbols with wild features
US8162741B2 (en) 2007-11-09 2012-04-24 Igt Gaming system, gaming device, and gaming method for transferring symbols between linked reels in multiple reel sets
US8241104B2 (en) 2006-11-06 2012-08-14 Igt Gaming device and method having designated rules for determining ways to win
US8308545B2 (en) 2007-11-09 2012-11-13 Wms Gaming Inc. Wagering game with enhanced player-selection bonus feature
US8430739B2 (en) 2006-11-10 2013-04-30 Igt Gaming system and method having wager dependent different symbol evaluations
US8574059B2 (en) 2008-11-14 2013-11-05 Igt Gaming system and method for providing a cascading symbol game including a plurality of independent reels which provide a stacked symbol functionality
US8662986B2 (en) 2008-11-13 2014-03-04 Igt Gaming system, gaming device, and method for providing a cascading symbols game having magnetic symbols and target symbols
US8721422B2 (en) 2004-05-19 2014-05-13 Wms Gaming Inc. Wagering game with award enhancement feature
US8790169B2 (en) 2008-07-23 2014-07-29 Igt Gaming system, gaming device, and method for providing a cascading symbols game with wild symbols usable for a designated quantity of symbol generations
US8968083B2 (en) 2009-11-12 2015-03-03 Igt Gaming system and method for dynamically grouping gaming devices to provide progressive awards
US9390589B2 (en) 2012-06-18 2016-07-12 Aristocrat Technologies Australia Pty Limited Method of gaming, a game controller and a gaming system
US9633506B2 (en) 2013-03-08 2017-04-25 Igt Gaming system and method for providing a game including roaming wild symbols
US9640039B2 (en) 2013-09-17 2017-05-02 Igt Gaming system and method for providing a cascading symbol game with shifting symbols in different directions between multiple symbol display position matrices
US9747744B2 (en) 2007-11-09 2017-08-29 Igt Gaming system, gaming device, and gaming method for shifting symbols from a staging area to a symbol matrix
US9786116B2 (en) 2012-01-19 2017-10-10 Igt Gaming system and method for providing a symbol game
US9805555B2 (en) 2009-03-16 2017-10-31 Igt Gaming device and method providing slot game having virtual map driven reel stop position determinations
US9852580B2 (en) 2004-08-19 2017-12-26 Igt Gaming system having multiple gaming machines which provide bonus awards
US9905073B2 (en) 2013-09-17 2018-02-27 Igt Gaming system and method for providing a cascading symbol game with shifting symbols between multiple symbol display position matrices
US9965925B2 (en) 2013-09-17 2018-05-08 Igt Gaming system and method for providing a cascading symbol game with symbol class eliminations
US9978221B2 (en) 2013-03-22 2018-05-22 Igt Gaming system and method for providing a multiple dimension symbol game with expanding wild symbols
US10121316B2 (en) 2008-11-14 2018-11-06 Igt Gaming system, gaming device, and method for enabling a current bet to be placed on a future play of a wagering game

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US5655961A (en) 1994-10-12 1997-08-12 Acres Gaming, Inc. Method for operating networked gaming devices
US7771271B2 (en) 1996-12-30 2010-08-10 Igt Method and apparatus for deriving information from a gaming device
US7727070B2 (en) 2001-09-28 2010-06-01 Igt Method and apparatus for authenticating and verifying communication on a network of gaming devices
WO2003030066A2 (en) 2001-09-28 2003-04-10 Acres Gaming Incorporated System for awarding a bonus to a gaming device on a wide area network
US8021230B2 (en) 2004-08-19 2011-09-20 Igt Gaming system having multiple gaming machines which provide bonus awards
US7892093B2 (en) 2004-08-19 2011-02-22 Igt Gaming system having multiple gaming machines which provide bonus awards
US7963847B2 (en) 2004-08-19 2011-06-21 Igt Gaming system having multiple gaming machines which provide bonus awards
US8251791B2 (en) 2004-08-19 2012-08-28 Igt Gaming system having multiple gaming machines which provide bonus awards
US7513826B2 (en) 2004-10-01 2009-04-07 Igt Gaming device with changing wild symbols
US8137179B2 (en) 2006-11-08 2012-03-20 Igt Gaming device having expanding and rolling wild symbols
US8408990B2 (en) 2008-11-14 2013-04-02 Igt Gaming system, gaming device, and method for providing benefit in a future play of a wagering game
US8911288B2 (en) 2009-03-16 2014-12-16 Igt Gaming device and method providing slot game having virtual map driven reel stop position determinations
US9165433B2 (en) 2009-11-10 2015-10-20 Igt Gaming system, gaming device, and method for providing a cascading symbol game including shifting symbols according to directional indicators
US8323091B2 (en) 2010-08-09 2012-12-04 Igt Gaming system, gaming device, and method for providing a cascading symbol game including shifting different determined symbols
US8226469B2 (en) 2010-09-29 2012-07-24 Igt Gaming system, gaming device, and method for providing a poker game with a bonus gaming session having re-draw option
US8430737B2 (en) 2011-07-21 2013-04-30 Igt Gaming system and method providing multi-dimensional symbol wagering game
US8485901B2 (en) 2011-07-21 2013-07-16 Igt Gaming system and method for providing a multi-dimensional symbol wagering game with rotating symbols
US8414380B2 (en) 2011-07-21 2013-04-09 Igt Gaming system, gaming device and method for providing a multiple dimension cascading symbols game with three dimensional symbols
US8371930B1 (en) 2011-07-21 2013-02-12 Igt Gaming system, gaming device and method for providing a multiple dimension cascading symbols game with a time element
US8357041B1 (en) 2011-07-21 2013-01-22 Igt Gaming system and method for providing a multi-dimensional cascading symbols game with player selection of symbols
US8366538B1 (en) 2011-07-21 2013-02-05 Igt Gaming system, gaming device and method for providing a multiple dimension cascading symbols game
US8608545B2 (en) 2011-12-06 2013-12-17 Igt Gaming system, gaming device, and method providing a game including a cascading symbols feature causing one or more repositioned symbols to be wild symbols
US8882578B2 (en) 2012-01-19 2014-11-11 Igt Gaming system, gaming device, and method for providing a cascading symbols game which reuses discarded symbols
US8512138B2 (en) 2012-01-19 2013-08-20 Igt Gaming system, gaming device, and method for providing a cascading symbols game which reuses discarded symbols
US9293014B2 (en) 2012-03-12 2016-03-22 Igt Gaming device having persistently extending wild symbols
US8795053B2 (en) 2012-09-24 2014-08-05 Igt Gaming system and method providing one or more indications associated with a player-selected symbol combination for a play of a pachisuro-style slot game
US9098973B2 (en) 2013-03-08 2015-08-04 Igt Gaming system and method for providing a game including roaming wild symbols
US9418518B2 (en) 2013-09-17 2016-08-16 Igt Gaming system and method for providing a cascading symbol game with interacting symbols
US9449465B2 (en) 2013-09-17 2016-09-20 Igt Gaming system and method for providing a cascading symbol game with upgrade events
US9275524B2 (en) 2013-09-17 2016-03-01 Igt Gaming system and method for providing a cascading symbol game with multiple symbol display position elements
US9472065B2 (en) 2013-09-17 2016-10-18 Igt Gaming system and method for providing a cascading symbol game with interacting symbols
US9311781B2 (en) 2013-09-17 2016-04-12 Igt Gaming system and method for providing a cascading symbol game with upgrade events
US9390587B2 (en) 2013-09-17 2016-07-12 Igt Gaming system and method for providing a cascading symbol game with multiple symbol display position symbols
US9349251B2 (en) 2013-09-17 2016-05-24 Igt Gaming system and method for providing a cascading symbol game with upgrade events

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Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204436A (en) * 1987-03-06 1988-11-09 Barcrest Ltd Entertainment machines
GB2204436B (en) * 1987-03-06 1991-07-17 Barcrest Ltd Entertainment machines
GB2214389A (en) * 1988-01-08 1989-08-31 James Phillips Mccann Video Brag Game Machine with Higher-Lower Gamble Feature
GB2214389B (en) * 1988-01-08 1992-04-22 James Phillips Mccann A video game machine
US5067712A (en) * 1989-02-02 1991-11-26 Hilton Nevada Corporation Multiple-pull slot machine
US5580309A (en) * 1994-02-22 1996-12-03 Sigma Game, Inc. Linked gaming machines having a common feature controller
EP0874337A1 (en) * 1997-04-23 1998-10-28 Wms Gaming, Inc. Gaming machine with bonus mode
US6234897B1 (en) 1997-04-23 2001-05-22 Wms Gaming Inc. Gaming device with variable bonus payout feature
US6203429B1 (en) 1997-04-23 2001-03-20 Wms Gaming Inc. Gaming machine with bonus mode
US6609975B1 (en) * 1997-08-25 2003-08-26 Thomas E. Sawyer Electronic system and method for operating an incentive auxiliary game
US6033307A (en) * 1998-03-06 2000-03-07 Mikohn Gaming Corporation Gaming machines with bonusing
US6059289A (en) * 1998-03-06 2000-05-09 Mikohn Gaming Corporation Gaming machines with bonusing
US6398218B1 (en) 1998-03-06 2002-06-04 Mikohn Gaming Corporation Gaming machine with bonusing
US6648759B2 (en) 1998-03-06 2003-11-18 Mikohn Gaming Corporation Gaming machines with bonusing
US6315660B1 (en) 1998-03-24 2001-11-13 Wms Gaming Inc. Gaming machines with board game theme
US6322309B1 (en) 1998-03-24 2001-11-27 Wms Gaming Inc. Bonus game for a gaming machine
US7520809B2 (en) 1998-03-24 2009-04-21 Wms Gaming Inc. Bonus game for a gaming machine
US6190255B1 (en) 1998-03-24 2001-02-20 Wms Gaming Inc. Bonus game for a gaming machine
US7452271B2 (en) 1998-03-24 2008-11-18 Wms Gaming Inc. Gaming machines with board game theme
US6482089B2 (en) 1998-03-24 2002-11-19 Wms Gaming Inc. Gaming machines with board game theme
US6506117B2 (en) 1998-03-24 2003-01-14 Wms Gaming Inc. Gaming machines with board game theme
US6508707B2 (en) * 1998-03-24 2003-01-21 Wms Gaming Inc. Gaming machines with board game theme, apparatus and method
US6520855B2 (en) 1998-03-24 2003-02-18 Wms Gaming Inc. Gaming machines with board game theme
US8480480B2 (en) 1998-03-24 2013-07-09 Wms Gaming Inc. Bonus game for a gaming machine
US6645074B2 (en) 1998-03-24 2003-11-11 Wms Gaming Inc. Bonus game for a gaming machine
US7195560B2 (en) 1998-03-24 2007-03-27 Wms Gaming Inc. Gaming machines with board game theme
US6905412B2 (en) * 1998-03-24 2005-06-14 Wms Gaming Inc. Bonus game for a gaming machine
US7901283B2 (en) 1998-03-24 2011-03-08 Wms Gaming Inc. Bonus game for a gaming machine
US6159098A (en) * 1998-09-02 2000-12-12 Wms Gaming Inc. Dual-award bonus game for a gaming machine
US6648757B1 (en) 1998-09-02 2003-11-18 Wms Gaming Inc. Dual-award bonus game for a gaming machine
US6443837B1 (en) 1999-05-26 2002-09-03 Wms Gaming Inc. Bonus games for gaming machines with strategy options
US6358147B1 (en) 1999-06-23 2002-03-19 Wms Gaming Inc. Gaming machine with multiple payoff modes and award presentation schemes
US6159097A (en) * 1999-06-30 2000-12-12 Wms Gaming Inc. Gaming machine with variable probability of obtaining bonus game payouts
US6800027B2 (en) 2000-03-31 2004-10-05 Wms Gaming Inc. System and method for saving status of paused game of chance
US7922573B2 (en) 2003-09-12 2011-04-12 Igt Gaming device having concentric reels including an outer reel with display areas having different sizes and positions
US8721422B2 (en) 2004-05-19 2014-05-13 Wms Gaming Inc. Wagering game with award enhancement feature
US9852580B2 (en) 2004-08-19 2017-12-26 Igt Gaming system having multiple gaming machines which provide bonus awards
US7753773B2 (en) 2005-08-26 2010-07-13 Igt Gaming device having physical concentric symbol generators which are operable to provide a plurality of different games to a player
AU2006203760B2 (en) * 2005-09-09 2011-02-03 Igt Gaming device having game with cascading wild symbols
US8241104B2 (en) 2006-11-06 2012-08-14 Igt Gaming device and method having designated rules for determining ways to win
US8430739B2 (en) 2006-11-10 2013-04-30 Igt Gaming system and method having wager dependent different symbol evaluations
US8308545B2 (en) 2007-11-09 2012-11-13 Wms Gaming Inc. Wagering game with enhanced player-selection bonus feature
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Also Published As

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GB2180087B (en) 1989-08-09
GB8518678D0 (en) 1985-08-29
GB8617786D0 (en) 1986-08-28

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Effective date: 19930721