Granted Patent
Utility
US 6,176,563 · App. 09/232,457
Ink marking device maintenance fluid replenishment system and method
Inventors:
David Greg Anderson, Frederick A. Donahue, Leonard M. Carreira, Arthur M. Gooray
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Jan 19, 1999
Inventors
David Greg Anderson
Frederick A. Donahue
Leonard M. Carreira
Arthur M. Gooray
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.