Granted Patent
Utility
US 4,458,605 · App. 06/388,305
Railway truck spring height adjustment device
Inventors:
James M. Herring, Jr., Walter S. Eggert, Jr.
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Jun 14, 1982
Inventors
James M. Herring, Jr.
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.