Granted Patent
Utility
US 4,571,068 · App. 06/474,495
Toner supply controlling device
Inventors:
Noriyoshi Tarumi, Masakazu Fukuchi, Kunio Ito
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Mar 11, 1983
Inventors
Noriyoshi Tarumi
Masakazu Fukuchi
Kunio Ito
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.