Granted Patent
Utility
US 4,328,532 · App. 06/221,066
Aircraft instrument lighting fixture
Inventor:
Richard A. Smith
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Dec 29, 1980
Inventor
Richard A. Smith
Assignee (at issue)
Midland-Ross 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.