Granted Patent
Utility
US 5,169,328 · App. 07/739,002
Atomic beam tube assembly
Inventor:
James L. Johnson
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Aug 1, 1991
Inventor
James L. Johnson
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.