Granted Patent
Utility
US 5,787,156 · App. 08/306,650
Telephonic-interface lottery system
Inventor:
Ronald A. Katz
Patented Case
View Patent ↗
Granted: Jul 28, 1998
Filed: Sep 14, 1994
Inventor
Ronald A. Katz
Assignee (at issue)
Ronald A. Katz Technology Licensing, L.P.
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.