Granted Patent
Utility
US 4,130,068 · App. 05/877,145
Center filler for railway cars
Inventors:
Marvin Stark, Steve L. Suvada
Patented Case
View Patent ↗
Granted: Dec 19, 1978
Filed: Feb 13, 1978
Inventors
Marvin Stark
Steve L. Suvada
Assignee (at issue)
The Pullman Company LLC
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.