Granted Patent
Utility
US 4,398,252 · App. 06/255,596
Electric controller having output power limiting circuit
Inventor:
John S. Frait
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Apr 20, 1981
Inventor
John S. Frait
Assignee (at issue)
KELSEY-HAYES-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.