Granted Patent
Utility
US 5,447,331 · App. 08/178,756
Vehicle axle oscillation system with positive ground contact
Inventor:
Ronald W. Barnhart
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Jan 7, 1994
Inventor
Ronald W. Barnhart
Assignee (at issue)
GENIE 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.