Granted Patent
Utility
US 4,576,466 · App. 06/477,016
Developing system for an electrostatic copying apparatus
Inventors:
Masakazu Fukuchi, Keiji Oishi
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Mar 21, 1983
Inventors
Masakazu Fukuchi
Keiji Oishi
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.