Granted Patent
Utility
US 5,707,739 · App. 08/465,086
Powdered biocidal compositions
Inventors:
Stephen T. Wellinghoff, Joel J. Kampa, Darren E. Barlow
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Jun 5, 1995
Inventors
Stephen T. Wellinghoff
Joel J. Kampa
Darren E. Barlow
Assignee (at issue)
SOUTHWEST RESEARCH INSTITUTE
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.