Granted Patent
Utility
US 4,652,998 · App. 06/568,080
Video gaming system with pool prize structures
Inventors:
John R. Koza, Norman T. La Marre, Martin A. Keane
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: Jan 4, 1984
Inventors
John R. Koza
Norman T. La Marre
Martin A. Keane
Assignee (at issue)
Bally Manufacturing Corporation
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.