Granted Patent
Utility
US 6,709,207 · App. 09/632,707
Center beam car with deep upper beam structure
Inventor:
James W. Forbes
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Aug 4, 2000
Inventor
James W. Forbes
Assignee (at issue)
National Steel Car Limited
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.