Granted Patent
Utility
US 5,584,925 · App. 08/494,920
Chemically aggregated kaolin clay pigment and process for making the same by phosphate bonding
Inventors:
Chris B. Maxwell, Prakash B. Malla
Patented Case
View Patent ↗
Granted: Dec 17, 1996
Filed: Jun 26, 1995
Inventors
Chris B. Maxwell
Prakash B. Malla
Assignee (at issue)
Thiele Kaolin Company
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.