Granted Patent
Utility
US 6,328,143 · App. 09/426,456
Brake shoe with friction management
Inventors:
Bruce W. Shute, Joseph F. Formolo, Kelvin Chiddick
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Oct 25, 1999
Inventors
Bruce W. Shute
Joseph F. Formolo
Kelvin Chiddick
Assignees (at issue)
Westinghouse Air Brake Technologies Corporation
Kelsen Technologies Corp.
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.