Granted Patent
Utility
US 4,828,970 · App. 07/038,834
Method for processing a light-sensitive silver halide color photographic material by controlling the pH value of the bleach fixing solution
Inventors:
Satoru Kuse, Shigeharu Koboshi
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Apr 15, 1987
Inventors
Satoru Kuse
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.