Granted Patent
Utility
US 6,534,570 · App. 09/922,404
Organoclay compositions for gelling unsaturated polyester resin systems
Inventors:
Thomas C. Farrow, Chris A. Rasmussen, William R. Menking, David Hugh Durham
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Aug 3, 2001
Inventors
Thomas C. Farrow
Chris A. Rasmussen
William R. Menking
David Hugh Durham
Assignee (at issue)
Southern Clay Products, 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.