Granted Patent
Utility
US 6,198,549 · App. 08/903,587
System, method, program, and print pattern for performing registration calibration for printers by measuring density
Inventors:
William Chesley Decker, Ho Chong Lee, Jack Louis Zable
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jul 31, 1997
Inventors
William Chesley Decker
Ho Chong Lee
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.