Granted Patent
Utility
US 4,863,837 · App. 07/149,966
Method of processing light-sensitive silver halide color photographic material comprising combinations of two different sequestering agents and a sensitizing dye
Inventors:
Masayuki Kurematsu, Shigeharu Koboshi
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Feb 2, 1988
Inventors
Masayuki Kurematsu
Shigeharu Koboshi
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.