Granted Patent
Utility
US 5,630,849 · App. 08/612,578
Dyeing method
Inventors:
Taiji Kameoka, Isamu Kawamura, Isamu Ghoda, Masanobu Ajioka, Keisuke Takuma, Akihiro Yamaguchi, Hiroshi Suizu
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Mar 8, 1996
Inventors
Taiji Kameoka
Isamu Kawamura
Isamu Ghoda
Masanobu Ajioka
Keisuke Takuma
Akihiro Yamaguchi
Hiroshi Suizu
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.