Granted Patent
Utility
US 6,186,893 · App. 08/769,085
Slot machine advertising/sales system and method
Inventors:
Jay S. Walker, James A. Jorasch, Thomas M. Sparico
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Dec 18, 1996
Inventors
Jay S. Walker
James A. Jorasch
Thomas M. Sparico
Assignee (at issue)
Walker Digital, LLC
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.