Granted Patent
Utility
US 4,398,330 · App. 06/260,880
Center plate structure for railway vehicle
Inventor:
Roger D. Meadows
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: May 6, 1981
Inventor
Roger D. Meadows
Assignee (at issue)
DayCo Holdings, LP
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.