Granted Patent
Utility
US 3,995,541 · App. 05/411,379
Railway hopper car having baffles decreasing load density
Inventors:
Edward L. Coyle, Edgar F. Josephson
Patented Case
View Patent ↗
Granted: Dec 7, 1976
Filed: Oct 31, 1973
Inventors
Edward L. Coyle
Edgar F. Josephson
Assignee (at issue)
ACF 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.