Granted Patent
Utility
US 4,818,667 · App. 07/002,200
Silver halide color photographic material
Inventors:
Fumio Hamada, Hiroshi Shimazaki
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Jan 12, 1987
Inventors
Fumio Hamada
Hiroshi Shimazaki
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.