Granted Patent
Utility
US 4,278,029 · App. 06/062,772
Resilient railway car truck suspension
Inventor:
Walter S. Eggert, Jr.
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Aug 1, 1979
Inventor
Walter S. Eggert, Jr.
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.