Granted Patent
Utility
US 6,133,219 · App. 09/125,561
Reductive bleaching agent
Inventors:
Terese Copete Vidal, Emili Brau Balague
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Nov 4, 1998
Inventors
Terese Copete Vidal
Emili Brau Balague
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.