Granted Patent
Utility
US 5,589,099 · App. 08/049,973
Low foaming rinse agents comprising ethylene oxide/propylene oxide block copolymer
Inventor:
Burton M. Baum
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Apr 20, 1993
Inventor
Burton M. Baum
Assignee (at issue)
ECOLAB 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.