Granted Patent
Utility
US 6,774,923 · App. 10/160,223
Dual polygon laser printhead for a color printer
Inventors:
Christopher Chee, Daniel Pawley, Earl Dawson Ward, II
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: May 31, 2002
Inventors
Christopher Chee
Daniel Pawley
Earl Dawson Ward, II
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.