Granted Patent
Utility
US 4,301,238 · App. 06/170,942
Method for the manufacture of silver halide photographic material
Inventors:
Sadayuki Miyazawa, Takashi Kadowaki, Isao Yamamoto
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jul 21, 1980
Inventors
Sadayuki Miyazawa
Takashi Kadowaki
Isao Yamamoto
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.