Granted Patent
Utility
US 5,781,821 · App. 08/736,574
Developing apparatus having float sensor system for replenishing tank
Inventors:
Yoshihiko Nakashima, Togo Kinoshita
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Oct 24, 1996
Inventors
Yoshihiko Nakashima
Togo Kinoshita
Assignee (at issue)
Noritsu Koki 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.