Granted Patent
Utility
US 6,477,937 · App. 09/460,443
Valve arrangement including release valve
Inventors:
Edward R. Horn, Robert E. Dowd
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Dec 13, 1999
Inventors
Edward R. Horn
Robert E. Dowd
Assignee (at issue)
Aladdin Engineering and Manufacturing, Inc.
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.