Granted Patent
Utility
US 6,146,539 · App. 09/274,534
Treatment of swimming pool water
Inventor:
Dudley John Mills
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Mar 23, 1999
Inventor
Dudley John Mills
Assignees (at issue)
Dudley Mills Pty Ltd.
Innovez Pty Ltd.
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.