Granted Patent
Utility
US 5,140,432 · App. 07/581,602
Method and system for printing in one or more color planes with improved control of error diffusion
Inventor:
C. S. Chan
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Sep 12, 1990
Inventor
C. S. Chan
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.