Granted Patent
Utility
US 6,422,155 · App. 09/677,750
Rail car truck pedestal shear pad
Inventors:
Thomas J. Heyden, Wilson W. S. Pak, Armand P. Taillon
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Oct 3, 2000
Inventors
Thomas J. Heyden
Wilson W. S. Pak
Armand P. Taillon
Assignee (at issue)
STANDARD CAR TRUCK COMPANY
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.