Granted Patent
Utility
US 4,472,667 · App. 06/523,195
D.C. Servo motor speed regulator
Inventor:
William M. Koos, Jr.
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Aug 15, 1983
Inventor
William M. Koos, Jr.
Assignee (at issue)
Burroughs, 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.