Granted Patent
Utility
US 4,368,672 · App. 06/220,804
Secondary suspension system for a railway car
Inventor:
John A. Germer
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Dec 29, 1980
Inventor
John A. Germer
Assignee (at issue)
The Budd Company
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.