Granted Patent
Utility
US 6,001,247 · App. 08/844,911
Removable, in-line diffuser apparatus for ozone disinfection of water
Inventor:
Christopher Schulz
Patented Case
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Granted: Dec 14, 1999
Filed: Apr 23, 1997
Inventor
Christopher Schulz
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.