Granted Patent
Utility
US 5,707,405 · App. 08/629,127
Water-reducible nigrosine dye compositions
Inventors:
Peter A. Caputo, Alejandro Zimin, Sr.
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Apr 8, 1996
Inventors
Peter A. Caputo
Alejandro Zimin, Sr.
Assignee (at issue)
Morton International, Inc.
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.