Granted Patent
Utility
US 5,662,803 · App. 08/629,671
Stabilizers for additives in aqueous systems containing ozone
Inventor:
Paul R. Young
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Apr 9, 1996
Inventor
Paul R. Young
Assignee (at issue)
Nalco Chemical Company
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.