Granted Patent
Utility
US 4,048,598 · App. 05/691,189
UHF tuning circuit utilizing a varactor diode
Inventor:
Stanley Knight
Patented Case
View Patent ↗
Granted: Sep 13, 1977
Filed: May 28, 1976
Inventor
Stanley Knight
Assignee (at issue)
RCA Corporation
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.