Granted Patent
Utility
US 5,131,667 · App. 07/670,626
Hose coupling gasket
Inventors:
William K. Mong, Daniel G. Scott
Patented Case
View Patent ↗
Granted: Jul 21, 1992
Filed: Mar 18, 1991
Inventors
William K. Mong
Daniel G. Scott
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.