Granted Patent
Utility
US 6,755,201 · App. 10/018,711
Method for the durable shaping of keratin fibers
Inventors:
Celia Kosboth, Anke Eggers, Josef Koester, Werner Seipel, Hermann Hensen
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Apr 2, 2002
Inventors
Celia Kosboth
Anke Eggers
Josef Koester
Werner Seipel
Hermann Hensen
Assignee (at issue)
Cognis Deutschland GmbH & Co. KG
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.