Granted Patent
Utility
US 4,295,428 · App. 06/029,720
Steerable truck for a railway vehicle
Inventors:
William W. Dickhart, III, Richard H. Marvin
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Apr 13, 1979
Inventors
William W. Dickhart, III
Richard H. Marvin
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.