Granted Patent
Utility
US 4,565,257 · App. 06/578,091
Multi-mode steering system
Inventor:
Charles B. Hanson
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Feb 8, 1984
Inventor
Charles B. Hanson
Assignee (at issue)
J. I. Case Company
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.