Granted Patent
Utility
US 4,692,400 · App. 06/857,024
Silver halide photographic light-sensitive material
Inventors:
Kenji Kumashiro, Toshifumi Iijima, Hideo Akamatsu, Syoji Matsuzaka
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Apr 29, 1986
Inventors
Kenji Kumashiro
Toshifumi Iijima
Hideo Akamatsu
Syoji Matsuzaka
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.