Granted Patent
Utility
US 4,254,216 · App. 05/939,968
Color photographic material
Inventors:
Takashi Uchida, Takashi Sasaki, Shoji Kikuchi, Katsuo Mogaki, Masahiko Taguchi, Syun Takada
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Sep 6, 1978
Inventors
Takashi Uchida
Takashi Sasaki
Shoji Kikuchi
Katsuo Mogaki
Masahiko Taguchi
Syun Takada
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.