Granted Patent
Utility
US 5,724,931 · App. 08/576,609
System for controlling the heating of temperature control fluid using the engine exhaust manifold
Inventor:
Thomas J. Hollis
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Dec 21, 1995
Inventor
Thomas J. Hollis
Assignee (at issue)
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.