Granted Patent
Utility
US 5,721,683 · App. 08/550,623
Electronic discrete brake control system for a train
Inventors:
Michael Joyce, Leonard Roselli
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Oct 31, 1995
Inventors
Michael Joyce
Leonard Roselli
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.