Granted Patent
Utility
US 6,200,353 · App. 09/495,582
Coupler for use in oxidative hair dyeing
Inventors:
Mu-Ill Lim, Linas R. Stasaitis, Yuh-Guo Pan
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Feb 1, 2000
Inventors
Mu-Ill Lim
Linas R. Stasaitis
Yuh-Guo Pan
Assignee (at issue)
BRISTOL-MYERS SQUIBB COMPANY
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.