Granted Patent
Utility
US 5,543,856 · App. 08/518,657
System and method for downstream application and control electronic billboard system
Inventors:
Roy Rosser, Brown F. Williams
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Aug 24, 1995
Inventors
Roy Rosser
Brown F. Williams
Assignee (at issue)
Princeton Video Image, 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.