Granted Patent
Utility
US 4,292,898 · App. 06/113,240
Filament composite railroad car
Inventors:
Robert L. Gordon, Harry A. King, James V. Springrose, Robert W. Cuddihy
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Jan 18, 1980
Inventors
Robert L. Gordon
Harry A. King
James V. Springrose
Robert W. Cuddihy
Assignees (at issue)
Cargill, Incorporated
Structural Composite 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.