Granted Patent
Utility
US 4,885,460 · App. 07/185,580
Device to detect frequency converted signals with high efficiency
Inventor:
Bruce J. Bartholomew
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Apr 25, 1988
Inventor
Bruce J. Bartholomew
Assignee (at issue)
General Dynamics Corporation, Convair Division
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.