Granted Patent
Utility
US 4,639,417 · App. 06/694,833
Silver halide X-ray photosensitive material
Inventors:
Chika Honda, Akio Suzuki, Katsutoshi Machida, Masatoshi Iwata
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Jan 25, 1985
Inventors
Chika Honda
Akio Suzuki
Katsutoshi Machida
Masatoshi Iwata
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.