Granted Patent
Utility
US 4,305,044 · App. 06/081,087
Amplifier circuit having controllable gain
Inventor:
Arthur J. Leidich
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: Oct 1, 1979
Inventor
Arthur J. Leidich
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.