Granted Patent
Utility
US 4,837,139 · App. 07/077,336
Method for processing a light-sensitive silver halide color photographic material using at least one silver halide emulsion layer and at least one of a cyan coupler and magneta coupler
Inventors:
Kazuhiro Kobayashi, Shigeharu Koboshi, Satoru Kuse, Masao Ishikawa
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jul 24, 1987
Inventors
Kazuhiro Kobayashi
Shigeharu Koboshi
Satoru Kuse
Masao Ishikawa
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.