Granted Patent
Utility
US 4,237,792 · App. 05/946,672
Reinforced liner for center plate structure of a railway vehicle
Inventor:
M. John Somers
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Sep 28, 1978
Inventor
M. John Somers
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.