Granted Patent
Utility
US 6,580,879 · App. 09/940,238
Method and system for managing replenishment of toners
Inventors:
Russell Coleman, Joseph W. Ward
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Aug 27, 2001
Inventors
Russell Coleman
Joseph W. Ward
Assignee (at issue)
Xerox Corporation
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.