Granted Patent
Utility
US 4,426,432 · App. 06/372,228
Electrophotosensitive receptor with trisazo compound
Inventors:
Kiyoshi Sawada, Satoshi Goto, Osamu Sasaki, Jiro Takahashi, Tawara Komamura
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Apr 26, 1982
Inventors
Kiyoshi Sawada
Satoshi Goto
Osamu Sasaki
Jiro Takahashi
Tawara Komamura
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.