Granted Patent
Utility
US 6,440,523 · App. 09/975,174
Lyocell fiber made from alkaline pulp having low average degree of polymerization values
Inventors:
James E. Sealey, II, W. Harvey Persinger, Jr., Mengkui Luo, Vincent A. Roscelli, Amar N. Neogi
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 10, 2001
Inventors
James E. Sealey, II
W. Harvey Persinger, Jr.
Mengkui Luo
Vincent A. Roscelli
Amar N. Neogi
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.