Granted Patent
Utility
US 4,409,323 · App. 06/234,442
Silver halide photographic material
Inventors:
Ryosuke Sato, Yuji Hotta, Katsumi Matsuura
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Feb 13, 1981
Inventors
Ryosuke Sato
Yuji Hotta
Katsumi Matsuura
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.