Granted Patent
Utility
US 4,490,462 · App. 06/477,130
Light-sensitive silver halide photographic material
Inventors:
Yasushi Kawaguchi, Kiyomitsu Mine, Keiko Ide, Yukie Yamashita, Soichiro Irie, Yotaro Hirao
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Mar 21, 1983
Inventors
Yasushi Kawaguchi
Kiyomitsu Mine
Keiko Ide
Yukie Yamashita
Soichiro Irie
Yotaro Hirao
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.