Granted Patent
Utility
US 5,386,783 · App. 08/057,441
Railway truck side bearing
Inventors:
Dennis Rhen, James F. Wright, Bruce E. Henderson
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: May 4, 1993
Inventors
Dennis Rhen
James F. Wright
Bruce E. Henderson
Assignee (at issue)
Hansen 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.