Granted Patent
Utility
US 5,682,822 · App. 08/680,061
Railway car side bearing
Inventors:
John R. Sunderman, Dale E. Monsell, Robert E. Owen
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Jul 15, 1996
Inventors
John R. Sunderman
Dale E. Monsell
Robert E. Owen
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.