Granted Patent
Utility
US 4,593,829 · App. 06/561,874
Articulated railway car connection with guided slack adjusting wedges
Inventor:
Russell G. Altherr
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Dec 15, 1983
Inventor
Russell G. Altherr
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.