Granted Patent
Utility
US 4,433,844 · App. 06/385,009
Drive mechanism for a variable speed gaming device
Inventors:
Donald E. Hooker, Roman A. Tojza
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Jun 4, 1982
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.