Granted Patent
Utility
US 4,568,940 · App. 06/333,363
Dual-mode radar receiver
Inventor:
Paul Diamond
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Dec 22, 1981
Inventor
Paul Diamond
Assignee (at issue)
Hughes Aircraft Company
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.