Granted Patent
Utility
US 4,617,258 · App. 06/843,824
Silver halide photographic material
Inventors:
Hiroshi Menjo, Nobuo Sakamoto, Yoshikazu Watanabe
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Mar 25, 1986
Inventors
Hiroshi Menjo
Nobuo Sakamoto
Yoshikazu Watanabe
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.