Granted Patent
Utility
US 4,818,672 · App. 07/060,058
Silver halide color photographic light-sensitive material improved in cyan image characteristics
Inventors:
Toyoaki Masukawa, Yasuo Tsuda, Hidetaka Ninomiya, Noritaka Nakayama, Toshihiko Kimura
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Jun 9, 1987
Inventors
Toyoaki Masukawa
Yasuo Tsuda
Hidetaka Ninomiya
Noritaka Nakayama
Toshihiko Kimura
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.