Granted Patent
Utility
US 5,086,708 · App. 07/607,828
Railcar truck bolster with immobilized friction shoes
Inventors:
Franklin S. McKeown, Jr., Charles Moehling, Charles P. Spencer
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Nov 1, 1990
Inventors
Franklin S. McKeown, Jr.
Charles Moehling
Charles P. Spencer
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.