Granted Patent
Utility
US 5,162,378 · App. 07/511,704
Silicone containing water-in-oil microemulsions having increased salt content
Inventor:
Bernadette Guthauser
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Apr 20, 1990
Inventor
Bernadette Guthauser
Assignee (at issue)
Revlon Consumer Products Corporation
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.