Granted Patent
Utility
US 6,718,147 · App. 10/287,312
Toner measurement and darkness control using printer systems
Inventors:
Philip Scot Carter, Benjamin Keith Newman, William Keith Richardson, Jason Carl True
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Nov 4, 2002
Inventors
Philip Scot Carter
Benjamin Keith Newman
William Keith Richardson
Jason Carl True
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.