Granted Patent
Utility
US 5,581,371 · App. 08/399,678
Error diffusion method
Inventors:
Kevin E. Spaulding, Douglas W. Couwenhoven
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Mar 7, 1995
Inventors
Kevin E. Spaulding
Douglas W. Couwenhoven
Assignee (at issue)
EASTMAN KODAK COMPANY
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.