Granted Patent
Utility
US 4,336,758 · App. 06/159,213
Railroad car sill-articulating device member connection
Inventor:
Robert P. Radwill
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Jun 13, 1980
Inventor
Robert P. Radwill
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.