Granted Patent
Utility
US 5,167,334 · App. 07/588,604
Apparatus to provide versatility in securing male and female connection members of an articulated coupler to a center sill member of a railway car
Inventors:
Wajih Kanjo, Michael G. Hawryszkow, William D. Wallace, David W. Daugherty, Jr.
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Sep 26, 1990
Inventors
Wajih Kanjo
Michael G. Hawryszkow
William D. Wallace
David W. Daugherty, Jr.
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.