Granted Patent
Utility
US 4,434,218 · App. 06/270,115
Photosensitive composition for electrophotography
Inventors:
Noriyoshi Tarumi, Akihiko Tamura, Masakazu Kokiso
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Jun 3, 1981
Inventors
Noriyoshi Tarumi
Akihiko Tamura
Masakazu Kokiso
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.