Granted Patent
Utility
US 5,507,251 · App. 08/469,957
System for determining the load condition of an engine for maintaining optimum engine oil temperature
Inventor:
Thomas J. Hollis
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jun 6, 1995
Inventor
Thomas J. Hollis
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.