Granted Patent
Utility
US 5,780,409 · App. 08/707,261
Water-in-oil emulsion having aqueous phase evaporation retarded with wax IR 3323D
Inventor:
John Distaso
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Sep 3, 1996
Inventor
John Distaso
Assignee (at issue)
Elf Atochem North America, 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.