Granted Patent
Utility
US 5,865,853 · App. 08/846,663
Composition for dyeing keratin fibers containing vegetable dyes, a direct dye compound and oil and method of dyeing hair using same
Inventors:
Manfred Schmitt, Uwe Lenz, Wolfgang Balzer, Henk Niessink
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: May 1, 1997
Inventors
Manfred Schmitt
Uwe Lenz
Wolfgang Balzer
Henk Niessink
Assignee (at issue)
Wella GmbH
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.