Granted Patent
Utility
US 6,804,027 · App. 09/918,260
Gray scale calibration tool for setting the density of a printer
Inventors:
Ho Chong Lee, Larry David Teklits, Jack Louis Zable
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Jul 30, 2001
Inventors
Ho Chong Lee
Larry David Teklits
Jack Louis Zable
Assignee (at issue)
International Business Machines Corporation
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.