Granted Patent
Utility
US 6,628,426 · App. 09/862,655
Method of halftone screen linearization via continuous gradient patches
Inventors:
Gary Allen Denton, Cary Patterson Ravitz
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: May 22, 2001
Inventors
Gary Allen Denton
Cary Patterson Ravitz
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.