Granted Patent
Utility
US 4,622,521 · App. 06/812,016
Precision operational amplifier using data sampling
Inventor:
Thomas P. Redfern
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Dec 23, 1985
Inventor
Thomas P. Redfern
Assignee (at issue)
Linear Technology Holding LLC
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.