Granted Patent
Utility
US 4,801,447 · App. 06/808,839
Water-in-volatile silicone emulsifier concentrates, water-in-volatile silicone emulsions that are useful in personal-care formulations and methods of making same
Inventor:
Mary L. Gum
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Dec 13, 1985
Inventor
Mary L. Gum
Assignee (at issue)
Union Carbide 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.