Granted Patent
Utility
US 4,396,853 · App. 06/179,190
Oxygenated photosensitive screen
Inventor:
James R. Caraher
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Aug 18, 1980
Inventor
James R. Caraher
Assignee (at issue)
The Machlett Laboratories, 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.