Granted Patent
Utility
US 4,315,465 · App. 06/153,470
Constant contact side bearing for articulated rail cars
Inventors:
Eugene J. Cordani, Frederick E. Vorwerk
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: May 27, 1980
Inventors
Eugene J. Cordani
Frederick E. Vorwerk
Assignee (at issue)
ACF Industries Incorporated
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.