Granted Patent
Utility
US 4,206,710 · App. 05/905,678
Railway car center plate filler arrangement
Inventor:
John H. Spence
Patented Case
View Patent ↗
Granted: Jun 10, 1980
Filed: May 15, 1978
Inventor
John H. Spence
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.