Granted Patent
Utility
US 5,288,077 · App. 07/800,631
Method of progressive jackpot twenty-one
Inventor:
Daniel A. Jones
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Nov 27, 1991
Inventor
Daniel A. Jones
Assignee (at issue)
D & D Gaming Patents, 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.