Granted Patent
Utility
US 6,402,826 · App. 09/451,109
Kaolin clay pigment for paper coating and method for producing same
Inventors:
Jun Yuan, Christopher R. L. Golley, Christopher Nutbeem, Rajan R. Iyer, William H. Pope, William L. Garforth, Anthony Lyons, Robert J. Pruett
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 30, 1999
Inventors
Jun Yuan
Christopher R. L. Golley
Christopher Nutbeem
Rajan R. Iyer
William H. Pope
William L. Garforth
Anthony Lyons
Robert J. Pruett
Assignee (at issue)
Imerys Pigments, 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.