Granted Patent
Utility
US 4,929,539 · App. 07/191,224
Silver halide photosensitive materials for color photography
Inventors:
Ryosuke Sato, Katsunori Kato, Takashi Sasaki, Hiroshi Sugita
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: May 6, 1988
Inventors
Ryosuke Sato
Katsunori Kato
Takashi Sasaki
Hiroshi Sugita
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.