Granted Patent
Utility
US 4,402,089 · App. 06/302,853
Television tuning system with electronic frequency adjustment apparatus
Inventors:
Stanley Knight, John G. N. Henderson
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Sep 16, 1981
Inventors
Stanley Knight
John G. N. Henderson
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.