Granted Patent
Utility
US 4,370,520 · App. 06/266,984
AM Stereo receiver
Inventor:
Max E. Malchow
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: May 26, 1981
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.