Granted Patent
Utility
US 4,587,195 · App. 06/721,781
Method of processing silver halide photographic light-sensitive material
Inventors:
Masao Ishikawa, Shigeharu Koboshi, Masayuki Kurematsu
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Apr 10, 1985
Inventors
Masao Ishikawa
Shigeharu Koboshi
Masayuki Kurematsu
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.