Granted Patent
Utility
US 4,324,856 · App. 06/194,799
Silver halide photographic material
Inventors:
Satoshi Kawakatsu, Shigeto Hirabayashi, Hidetaka Ninomiya, Yutaka Kaneko
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Oct 7, 1980
Inventors
Satoshi Kawakatsu
Shigeto Hirabayashi
Hidetaka Ninomiya
Yutaka Kaneko
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.