Granted Patent
Utility
US 6,446,561 · App. 09/649,730
Autorack railcar structure
Inventor:
Mohamed A. Khattab
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Aug 28, 2000
Inventor
Mohamed A. Khattab
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.