Granted Patent
Utility
US 4,833,069 · App. 07/005,097
Silver halide color photographic light-sensitive material comprising a specified cyan coupler combination and total film thickness
Inventors:
Fumio Hamada, Yoshitaka Yamada, Kiyotoshi Yamashita
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Jan 20, 1987
Inventors
Fumio Hamada
Yoshitaka Yamada
Kiyotoshi Yamashita
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.