Granted Patent
Utility
US 4,350,758 · App. 06/203,513
Photographic emulsion containing copper halide host crystals
Inventors:
Takeo Koitabashi, Syozi Matsuzaka, Toshifumi Iijima, Tetsuya Harada
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: Nov 3, 1980
Inventors
Takeo Koitabashi
Syozi Matsuzaka
Toshifumi Iijima
Tetsuya Harada
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.