Granted Patent
Utility
US 4,344,044 · App. 06/143,034
Gain-controlled amplifier utilizing variable emitter degeneration and collector load impedance
Inventor:
Jack R. Harford
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: Apr 23, 1980
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.