Granted Patent
Utility
US 5,490,932 · App. 08/222,077
Fluid treatment valve system with nozzle driven turbine
Inventors:
Christopher L. Hansen, Stuart Park
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Apr 1, 1994
Inventors
Christopher L. Hansen
Stuart Park
Assignee (at issue)
KINETICO INCORPORATED
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.