Granted Patent
Utility
US 5,572,818 · App. 08/407,624
Fiber optic light bar for edge lighted signage
Inventor:
David L. Churchill
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Mar 21, 1995
Inventor
David L. Churchill
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.