Granted Patent
Utility
US 5,727,475 · App. 08/667,368
Side stake for rotary dump rail car
Inventor:
William E. Kurtz
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Jun 21, 1996
Inventor
William E. Kurtz
Assignee (at issue)
Johnstown America Corporation
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.