Granted Patent
Utility
US 4,288,875 · App. 06/119,991
Controlled local oscillator with apparatus for extending its frequency range
Inventor:
George W. Carter
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Feb 8, 1980
Inventor
George W. Carter
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.