Granted Patent
Utility
US 4,741,990 · App. 07/022,208
Method for processing silver halide photographic light-sensitive materials
Inventors:
Eiichi Sakamoto, Yutaka Kaneko
Patented Case
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Granted: May 3, 1988
Filed: Mar 5, 1987
Inventors
Eiichi Sakamoto
Yutaka Kaneko
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.