Granted Patent
Utility
US 5,334,474 · App. 08/075,440
Dry toner with mixed azo dye charge control agent
Inventors:
Jerry J. Abbott, Brian W. Baird, Michael Gordon Miller
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Jun 14, 1993
Inventors
Jerry J. Abbott
Brian W. Baird
Michael Gordon Miller
Assignee (at issue)
Lexmark International, Inc.
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.