Granted Patent
Utility
US 4,274,339 · App. 06/043,199
Radially steering railway truck assembly
Inventor:
Geoffrey W. Cope
Patented Case
View Patent ↗
Granted: Jun 23, 1981
Filed: May 29, 1979
Inventor
Geoffrey W. Cope
Assignee (at issue)
Dresser Industries, Inc.
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.