Granted Patent
Utility
US 6,051,360 · App. 09/001,921
Dyestuffs and resin compositions
Inventors:
Akio Karasawa, Hisato Itoh
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Dec 31, 1997
Inventors
Akio Karasawa
Hisato Itoh
Assignee (at issue)
MITSUI CHEMICALS, 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.