Granted Patent
Utility
US 4,515,881 · App. 06/549,589
Electrophotographic bisazo photosensitive member
Inventors:
Kiyoshi Sawada, Satoshi Goto, Akira Kinoshita, Osamu Sasaki
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Nov 7, 1983
Inventors
Kiyoshi Sawada
Satoshi Goto
Akira Kinoshita
Osamu Sasaki
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.