Granted Patent
Utility
US 4,837,310 · App. 07/001,852
Red or bluish-red fiber-reactive monoazo compound having 7-substituted amino-1-naphthol-sulfonic acid as coupling component between the chromophore and fiber reactive portions of the compound
Inventors:
Toshihiko Morimitsu, Sadanobu Kikkawa, Takashi Omura
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jan 9, 1987
Inventors
Toshihiko Morimitsu
Sadanobu Kikkawa
Takashi Omura
Assignee (at issue)
SUMITOMO CHEMICAL COMPANY, LIMITED
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.