Granted Patent
Utility
US 5,507,368 · App. 08/419,728
Railway car truck mounted brake assembly with multiple piston air cylinder
Inventor:
Richard Barefoot
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Apr 10, 1995
Inventor
Richard Barefoot
Assignee (at issue)
Ellcon National, Inc.
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.