Granted Patent
Utility
US 4,444,877 · App. 06/347,258
Light-sensitive silver halide emulsion
Inventors:
Takeo Koitabashi, Yoshihiro Haga, Syoji Matsuzaka
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Feb 9, 1982
Inventors
Takeo Koitabashi
Yoshihiro Haga
Syoji Matsuzaka
Assignee (at issue)
Konishiroku Photo Ind. 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.