Granted Patent
Utility
US 6,662,853 · App. 10/386,793
Method of making bolsters and sideframes for railway car trucks
Inventors:
Anthony J. Bauer, Thomas R. Callahan, Edward R. Hanson, Charles Moehling, Ronald R. Evers, Brian A. Toussaint, Donald J. Lane, Delbert E. Parrish
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Mar 12, 2003
Inventors
Anthony J. Bauer
Thomas R. Callahan
Edward R. Hanson
Charles Moehling
Ronald R. Evers
Brian A. Toussaint
Donald J. Lane
Delbert E. Parrish
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.