Granted Patent
Utility
US 4,731,322 · App. 06/892,889
Light-sensitive silver halide photographic material for X-ray photography
Inventors:
Akio Suzuki, Masatoshi Iwata, Katsutoshi Machida, Chika Honda
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Jul 29, 1986
Inventors
Akio Suzuki
Masatoshi Iwata
Katsutoshi Machida
Chika Honda
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.