Granted Patent
Utility
US 5,574,233 · App. 08/324,237
Non-contact railway wheel test apparatus and method
Inventors:
John D. Oliver, Roger M. Whitson
Patented Case
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Granted: Nov 12, 1996
Filed: Oct 17, 1994
Inventors
John D. Oliver
Roger M. Whitson
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.