Granted Patent
Utility
US 5,399,285 · App. 07/969,086
Non-chlorinated low alkalinity high retention cleaners
Inventor:
Ratana Kanluen
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Oct 30, 1992
Inventor
Ratana Kanluen
Assignee (at issue)
DIVERSEY, 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.