Granted Patent
Utility
US 5,216,983 · App. 07/966,378
Vehicle hydraulic cooling fan system
Inventor:
Carl A. Nilson
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Oct 26, 1992
Inventor
Carl A. Nilson
Assignee (at issue)
Harvard Industries, 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.