Granted Patent
Utility
US 4,469,429 · App. 06/411,572
Electrophotographic reproducing machine
Inventors:
Yukio Okamoto, Noriyoshi Tarumi, Hisashi Ashida
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Aug 25, 1982
Inventors
Yukio Okamoto
Noriyoshi Tarumi
Hisashi Ashida
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.