Granted Patent
Utility
US 6,740,127 · App. 09/979,597
Agent and method for coloring keratin fibres
Inventors:
Gabriele Friess, Iris Bahnmueller
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Nov 16, 2001
Inventors
Gabriele Friess
Iris Bahnmueller
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.