Granted Patent
Utility
US 4,449,228 · App. 06/363,702
Collimator logic control system
Inventor:
Robert L. Burbury
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Mar 30, 1982
Inventor
Robert L. Burbury
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.