Method of providing free games on a slot machine device
US7749072B1 · kind B1 · utility
27Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2005 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Feb 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/3267
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention includes a variety of methods to provide free games on a slot machine device until the appearance of two or more predetermined symbol combinations in the symbol matrix. A preferred embodiment, Capture Spins, provides free games until three, winning Capture symbol combinations appear in the symbol matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.