Granted Patent
Utility
US 4,803,518 · App. 07/083,870
Apparatus for forming a multi-color toner image
Inventors:
Satoshi Haneda, Hisashi Shoji, Seiichiro Hiratsuka
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Aug 7, 1987
Inventors
Satoshi Haneda
Hisashi Shoji
Seiichiro Hiratsuka
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.