Granted Patent
Utility
US 5,730,504 · App. 08/783,025
Release assuring arrangement for combined electro-pneumatic/automatic pneumatic brake
Inventor:
Edward W. Gaughan
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Jan 14, 1997
Inventor
Edward W. Gaughan
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.