Granted Patent
Utility
US 6,171,347 · App. 09/101,099
Compositions, methods and kits for reductively removing color from dyed hair
Inventors:
Manuela Kunz, Dominique Le Cruer
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Jul 1, 1998
Inventors
Manuela Kunz
Dominique Le Cruer
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.