Granted Patent
Utility
US 4,249,137 · App. 05/968,443
Amplifier system with AGC, as for an AM radio
Inventor:
Max E. Malchow
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Dec 11, 1978
Inventor
Max E. Malchow
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.