Granted Patent
Utility
US 5,707,912 · App. 08/617,964
Process for the treatment of clay materials to provide slurries having improved rheological properties
Inventors:
Robert A. Lowe, Prakash B. Malla
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Mar 18, 1996
Inventors
Robert A. Lowe
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.