Granted Patent
Utility
US 6,432,433 · App. 09/587,532
Liquid biocidal composition of a formaldehyde adduct and an isothiazolone and method of use
Inventors:
Karen Winkowski, Xianbin Liu
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jun 5, 2000
Inventors
Karen Winkowski
Xianbin Liu
Assignee (at issue)
ISP INVESTMENTS LLC
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.