Granted Patent
Utility
US 6,178,254 · App. 09/087,475
Method for elimination of effects of imperfections on color measurements
Inventors:
Jeffrey P. Rappette, John C. Seymour
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: May 29, 1998
Inventors
Jeffrey P. Rappette
John C. Seymour
Assignee (at issue)
Quad/Graphics, 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.