Granted Patent
Utility
US 6,761,827 · App. 10/014,944
Method and apparatus for purifying water
Inventor:
Richard T. Coffey
Patented Case
View Patent ↗
Granted: Jul 13, 2004
Filed: Oct 26, 2001
Inventor
Richard T. Coffey
Assignee (at issue)
Zodiac Pool Care, 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.