Granted Patent
Utility
US 6,440,547 · App. 09/998,267
Lyocell film made from cellulose having low degree of polymerization values
Inventors:
Mengkui Luo, Vincent A. Roscelli, Amar N. Neogi, James E. Sealey, II, Richard A. Jewell
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 30, 2001
Inventors
Mengkui Luo
Vincent A. Roscelli
Amar N. Neogi
James E. Sealey, II
Richard A. Jewell
Assignee (at issue)
Weyerhaeuser NR 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.