Granted Patent
Utility
US 4,477,561 · App. 06/467,365
Silver halide photographic material
Inventors:
Hiroshi Menjo, Yoshikazu Watanabe, Nobuo Sakamoto
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Feb 17, 1983
Inventors
Hiroshi Menjo
Yoshikazu Watanabe
Nobuo Sakamoto
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.