Granted Patent
Utility
US 4,361,815 · App. 06/164,682
Operational amplifier with programmable gain
Inventor:
Otto H. Schade, Jr.
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Jun 30, 1980
Inventor
Otto H. Schade, Jr.
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.