Granted Patent
Utility
US 6,200,487 · App. 09/178,879
In-line, in-pool water purification system
Inventors:
Raymond P. Denkewicz, Jr., Alvin Costa, Daniel Nelsen, Aidan Petrie
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Oct 26, 1998
Inventors
Raymond P. Denkewicz, Jr.
Alvin Costa
Daniel Nelsen
Aidan Petrie
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.