Granted Patent
Utility
US 6,607,007 · App. 09/872,233
Cylinder valve and bayonet check-filter with excess-flow protection feature
Inventors:
Wendell Hull, Barry E. Newton
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: May 31, 2001
Inventors
Wendell Hull
Barry E. Newton
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.