Granted Patent
Utility
US 4,252,482 · App. 05/955,274
Railway car counter-balanced tilting deck
Inventor:
David G. Naves
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Oct 26, 1978
Inventor
David G. Naves
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.