Granted Patent
Utility
US 4,237,490 · App. 06/021,326
Signal overload prevention circuit
Inventor:
Jack R. Harford
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Mar 16, 1979
Inventor
Jack R. Harford
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.