Granted Patent
Utility
US 4,972,093 · App. 07/439,553
Inspection lighting system
Inventors:
Don W. Cochran, James R. Austin
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Nov 20, 1989
Inventors
Don W. Cochran
James R. Austin
Assignee (at issue)
Pressco, 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.