Granted Patent
Utility
US 6,106,579 · App. 09/210,022
Compositions and methods for dyeing and safe decolorizing of fibers, especially hair, and multi-part kit for repeatedly changing dyed fiber color
Inventors:
Manuela Kunz, Dominique Le Cruer, Christel Dousse
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Dec 11, 1998
Inventors
Manuela Kunz
Dominique Le Cruer
Christel Dousse
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.