Granted Patent
Utility
US 5,794,740 · App. 08/709,197
Dual type composition brake block specifically designed for use in predetermined type brake systems
Inventors:
Raj Velayutha, John Travers
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Aug 23, 1996
Inventors
Raj Velayutha
John Travers
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.