Granted Patent
Utility
US 4,826,618 · App. 07/071,619
Stable detergent emulsions
Inventors:
Donald Borseth, David McCall
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Jul 9, 1987
Inventors
Donald Borseth
David McCall
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.