Granted Patent
Utility
US 6,217,780 · App. 09/473,329
Biocidal compositions for treating water
Inventors:
Raymond P. Denkewicz, Jr., Ernest Senderov, Joseph W. Grenier
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Dec 28, 1999
Inventors
Raymond P. Denkewicz, Jr.
Ernest Senderov
Joseph W. Grenier
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.