Granted Patent
Utility
US 4,731,320 · App. 06/896,564
Silver halide photographic material
Inventors:
Masao Sasaki, Toyoki Nishijima, Shun Takada, Takashi Kadowaki, Kaoru Onodera
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Aug 13, 1986
Inventors
Masao Sasaki
Toyoki Nishijima
Shun Takada
Takashi Kadowaki
Kaoru Onodera
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.