Granted Patent
Utility
US 4,144,070 · App. 05/853,520
Light-sensitive silver halide photographic materials
Inventors:
Masayuki Matsumoto, Toshio Nagatani, Noboru Fujimori
Patented Case
View Patent ↗
Granted: Mar 13, 1979
Filed: Nov 21, 1977
Inventors
Masayuki Matsumoto
Toshio Nagatani
Noboru Fujimori
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.