Granted Patent
Utility
US 6,155,925 · App. 09/373,151
Bonus game for gaming machine with payout percentage varying as function of wager
Inventors:
John J. Giobbi, Joel R. Jaffe
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Aug 12, 1999
Inventors
John J. Giobbi
Joel R. Jaffe
Assignee (at issue)
WMS GAMING, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.