Granted Patent
Utility
US 5,593,490 · App. 08/494,892
Kaolin clay slurries having reduced viscosities and process for the manufacture thereof
Inventors:
Owen E. Etheridge, Jr., Jorge L. Yordan, Robert A. Lowe
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Jun 26, 1995
Inventors
Owen E. Etheridge, Jr.
Jorge L. Yordan
Robert A. Lowe
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.