Granted Patent
Utility
US 5,702,012 · App. 08/653,465
Rotary drawbar assembly for a railway freight car
Inventor:
Wajih Kanjo
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: May 24, 1996
Inventor
Wajih Kanjo
Assignee (at issue)
Westinghouse Air Brake Co.
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.