Granted Patent
Utility
US 4,413,569 · App. 06/261,421
Steering railroad truck
Inventor:
Harry W. Mulcahy
Patented Case
View Patent ↗
Granted: Nov 8, 1983
Filed: May 7, 1981
Inventor
Harry W. Mulcahy
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.