The present invention includes an apparatus and method for a bonus game, and particularly a free spin bonus with an incrementing multiplier. The bonus game includes a plurality of reels having a plurality of symbols and multipliers. The gaming device provides a number of free spins to the player at the...http://www.google.fr/patents/US20030162585?utm_source=gb-gplus-shareBrevet US20030162585 - Gaming device having free game bonus with a changing multiplier
Gaming device having free game bonus with a changing multiplier
Numéro de demande: 10/086,146 Numéro de publication: US 2003/0162585 A1 Date de dépôt: 28 févr. 2002 Brevet délivré: US7258611 ( Date de délivrance 21 août 2007)
