Granted Patent
Utility
US 5,500,213 · App. 08/370,915
Gelled biocidal treatments
Inventors:
Donald Carroll Roe, David M. Polizzotti
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Jan 10, 1995
Inventors
Donald Carroll Roe
David M. Polizzotti
Assignee (at issue)
Betz Laboratories, 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.