Granted Patent
Utility
US 5,873,638 · App. 08/816,527
Dual purpose end of train device for electrically controlled pneumatic freight brake systems
Inventor:
Angel P. Bezos
Patented Case
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Granted: Feb 23, 1999
Filed: Mar 13, 1997
Inventor
Angel P. Bezos
Assignee (at issue)
Westingthouse Air Brake Company
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.