Granted Patent
Utility
US 5,685,331 · App. 08/359,561
Oil level regulator
Inventor:
Gary W. Westermeyer
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Dec 20, 1994
Inventor
Gary W. Westermeyer
Assignee (at issue)
AC&R Components, 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.