Granted Patent
Utility
US 4,564,587 · App. 06/629,361
Light-sensitive silver halide color photographic material comprising multi-silver halide emulsion layers having same color sensitiveness but different in sensitivities
Inventors:
Yoshikazu Watanabe, Kenji Ito
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Jul 10, 1984
Inventors
Yoshikazu Watanabe
Kenji Ito
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.