Granted Patent
Utility
US 5,489,531 · App. 07/919,519
Combined two stage method for cleaning and decontaminating surgical instruments
Inventor:
Leslee M. Benson
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Jul 24, 1992
Inventor
Leslee M. Benson
Assignee (at issue)
E.R. SQUIBB & SONS. 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.