Granted Patent
Utility
US 4,296,868 · App. 06/096,342
Housing for draft gear
Inventor:
Richard J. Housman
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Nov 21, 1979
Inventor
Richard J. Housman
Assignee (at issue)
Westinghouse Air Brake Co.
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.