Gaming machine executing free game and control method thereof
US8187083B2 · kind B2 · utility
0Cited by
4References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 13, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/3267
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
According to a gaming machine 1 of the present invention, a specific number of free games are generated when three or more trigger symbols 100 have been stop-displayed in a normal game. Further, when one or two trigger symbols 100 have been stop-displayed in a free game, numeric values in number equivalent to the number of stop-displayed trigger symbols 100 are selected, and then the number of times obtained by summing up the selected numeric values is added to the number of free games.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.