Granted Patent
Utility
US 4,443,209 · App. 06/305,399
Gaming apparatus having manually controllable-operating speed
Inventors:
Donald E. Hooker, Roman A. Tojza
Patented Case
View Patent ↗
Granted: Apr 17, 1984
Filed: Sep 25, 1981
Inventors
Donald E. Hooker
Roman A. Tojza
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.