Granted Patent
Utility
US 4,839,270 · App. 07/080,298
Rapidly processable silver halide photographic light-sensitive material
Inventors:
Takaaki Kojima, Mitsuhiro Okumura
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Jul 31, 1987
Inventors
Takaaki Kojima
Mitsuhiro Okumura
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.