Granted Patent
Utility
US 6,680,153 · App. 10/152,884
Toner compositions
Inventors:
Scott M. Silence, Edward J. Gutman, Thomas R. Hoffend
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: May 21, 2002
Inventors
Scott M. Silence
Edward J. Gutman
Thomas R. Hoffend
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.