Granted Patent
Utility
US 6,606,463 · App. 10/012,442
Optical toner concentration sensor
Inventors:
Eric Michael Gross, Scott M. Silence, Ralph A. Shoemaker, Douglas Kreckel, Jean A. Maksymiak, Raymond L. Mongeon, Joseph A. Mastrandrea, R. Enrique Viturro
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Dec 12, 2001
Inventors
Eric Michael Gross
Scott M. Silence
Ralph A. Shoemaker
Douglas Kreckel
Jean A. Maksymiak
Raymond L. Mongeon
Joseph A. Mastrandrea
R. Enrique Viturro
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.