Granted Patent
Utility
US 4,790,959 · App. 07/004,856
Dispersion
Inventors:
Masao Sasaki, Kaoru Onodera, Hideki Inahata
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Jan 12, 1987
Inventors
Masao Sasaki
Kaoru Onodera
Hideki Inahata
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.