Granted Patent
Utility
US 4,976,362 · App. 07/389,548
Pulling lug for railway vehicle coupler
Inventor:
Horst T. Kaufhold
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Aug 4, 1989
Inventor
Horst T. Kaufhold
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.