Granted Patent
Utility
US 4,416,022 · App. 06/362,807
Prism light-line system
Inventor:
James W. Cutter
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: Mar 29, 1982
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.