Granted Patent
Utility
US 4,851,786 · App. 07/288,843
Differential amplifier
Inventors:
Charles Vinn, Thinh Cat Nguyen
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Dec 23, 1988
Inventors
Charles Vinn
Thinh Cat Nguyen
Assignee (at issue)
Raytheon Company
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.