Granted Patent
Utility
US 4,393,355 · App. 06/315,085
Operational amplifier
Inventors:
William F. Davis, Stuart B. Shacter
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Oct 26, 1981
Inventors
William F. Davis
Stuart B. Shacter
Assignee (at issue)
Motorola, Inc.
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.