Granted Patent
Utility
US 6,014,820 · App. 09/017,126
Shuttle valve for twin tower air dryer
Inventors:
Charlie Edmond Jones, Michael V. Kazakis, Murtaza R. Dossaji
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Feb 2, 1998
Inventors
Charlie Edmond Jones
Michael V. Kazakis
Murtaza R. Dossaji
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.