Granted Patent
Utility
US 5,733,343 · App. 08/756,448
Process for dyeing keratin-containing fibres with cationic dyes
Inventor:
Peter Mockli
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Nov 26, 1996
Inventor
Peter Mockli
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.