Granted Patent
Utility
US 6,376,591 · App. 09/452,511
High barrier amorphous polyamide-clay intercalates, exfoliates, and nanocomposite and a process for preparing same
Inventors:
Tie Lan, Vasiliki Psihogios, Sam Richard Turner, Gary Wayne Connell, James C. Matayabas, Jr., John Walker Gilmer
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Dec 1, 1999
Inventors
Tie Lan
Vasiliki Psihogios
Sam Richard Turner
Gary Wayne Connell
James C. Matayabas, Jr.
John Walker Gilmer
Assignee (at issue)
AMCOL INTERNATIONAL CORPORATION
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.