Granted Patent
Utility
US 4,840,888 · App. 07/266,211
Light-sensitive silver halide photographic material
Inventors:
Mikio Kawasaki, Hiroaki Shiozawa, Kakujulo Fukuouji, Kouji Ono
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Oct 27, 1988
Inventors
Mikio Kawasaki
Hiroaki Shiozawa
Kakujulo Fukuouji
Kouji Ono
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.