Granted Patent
Utility
US 6,616,749 · App. 09/647,720
Pigment products
Inventors:
John Claude Husband, Desmond Charles Payton, Michele Susan Renals
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Oct 4, 2000
Inventors
John Claude Husband
Desmond Charles Payton
Michele Susan Renals
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.