Granted Patent
Utility
US 4,429,637 · App. 06/312,994
Railway vehicle truck
Inventors:
Keith L. Jackson, Dallas L. Schmitt, John L. Schauster
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Oct 19, 1981
Inventors
Keith L. Jackson
Dallas L. Schmitt
John L. Schauster
Assignee (at issue)
Lukens General Industries, Inc.
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.