Granted Patent
Utility
US 4,228,235 · App. 06/001,926
Color photographic material
Inventors:
Kyohei Okonogi, Mikio Sato, Katsuo Mogaki, Takashi Sasaki, Takashi Uchida
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: Jan 8, 1979
Inventors
Kyohei Okonogi
Mikio Sato
Katsuo Mogaki
Takashi Sasaki
Takashi Uchida
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.