Granted Patent
Utility
US 4,686,176 · App. 06/778,320
Multilayer multi-color photographic material
Inventors:
Toshihiko Yagi, Katsumasa Yamazaki, Kenji Michiue, Yoshiharu Mochizuki, Sohei Goto
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Sep 20, 1985
Inventors
Toshihiko Yagi
Katsumasa Yamazaki
Kenji Michiue
Yoshiharu Mochizuki
Sohei Goto
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.