Granted Patent
Utility
US 4,462,352 · App. 06/504,491
Engine protective device responsive to low oil pressure
Inventor:
J. T. Mills
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Jun 15, 1983
Inventor
J. T. Mills
Assignee (at issue)
Sentinel Manufacturing Company, 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.