Granted Patent
Utility
US 5,462,179 · App. 08/238,261
Slackless drawbar assembly using a ball and race assembly at each end of the drawbar
Inventors:
David W. Daugherty, Jr., Wajih Kanjo, Michael G. Hawryszkow
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: May 4, 1994
Inventors
David W. Daugherty, Jr.
Wajih Kanjo
Michael G. Hawryszkow
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.