Granted Patent
Utility
US 5,218,631 · App. 07/534,907
Telephonic-interface game control system
Inventor:
Ronald A. Katz
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Jun 8, 1990
Inventor
Ronald A. Katz
Assignee (at issue)
FIRST DATA RESOURCES, 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.