Granted Patent
Utility
US 6,364,853 · App. 09/659,739
Irrigation and suction valve and method therefor
Inventors:
C. Kenneth French, Garrett Barker, Stephen Chakoff, Melvin E. Levinson
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Sep 11, 2000
Inventors
C. Kenneth French
Garrett Barker
Stephen Chakoff
Melvin E. Levinson
Assignee (at issue)
Scion International, 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.