Granted Patent
Utility
US 6,142,480 · App. 08/953,800
Resilient type sealing member for sealing a push rod member of a railway type vehicle brake cylinder
Inventors:
Lawrence R. Streitman, Rowland R. Evans, Julie A. Krawczyk
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Sep 24, 1997
Inventors
Lawrence R. Streitman
Rowland R. Evans
Julie A. Krawczyk
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.