Granted Patent
Utility
US 6,089,166 · App. 09/357,061
Bolsters for railway trucks
Inventors:
Thomas R. Callahan, Anthony J. Bauer, Edward R. Hanson, Charles Moehling, Ronald R. Evers
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Jul 19, 1999
Inventors
Thomas R. Callahan
Anthony J. Bauer
Edward R. Hanson
Charles Moehling
Ronald R. Evers
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.