Granted Patent
Utility
US 6,576,230 · App. 09/975,880
Biocidal mixture of 2-propenal-releasing polymer and isothiazolones
Inventors:
Liu Xianbin, Karen Winkowski
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Oct 11, 2001
Inventors
Liu Xianbin
Karen Winkowski
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.