Granted Patent
Utility
US 4,389,730 · App. 06/263,448
Compact collimator
Inventor:
James W. Cutter
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: May 14, 1981
Inventor
James W. Cutter
Assignee (at issue)
Litton Industrial Products, 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.