Granted Patent
Utility
US 4,692,808 · App. 06/902,811
Passively modulated push broom display
Inventor:
Samuel B. Chism, Jr.
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Sep 2, 1986
Inventor
Samuel B. Chism, Jr.
Assignee (at issue)
Ford Aerospace & Communications Corporation
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.