Granted Patent
Utility
US 5,584,924 · App. 08/296,493
Opacifying kaolin clay pigments having improved rheology and process for the manufacture thereof
Inventors:
Lee Ann Arrington-Webb, Prakash B. Malla
Patented Case
View Patent ↗
Granted: Dec 17, 1996
Filed: Aug 26, 1994
Inventors
Lee Ann Arrington-Webb
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.