Granted Patent
Utility
US 6,506,435 · App. 09/432,945
Cellulose fiber-based compositions and their method of manufacture
Inventors:
Brock Lundberg, Lin Gu, Rongsheng Ruan, Ling Chen, Paul Bradley Addis, Jack Edgar Johnson
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Nov 3, 1999
Inventors
Brock Lundberg
Lin Gu
Rongsheng Ruan
Ling Chen
Paul Bradley Addis
Jack Edgar Johnson
Assignees (at issue)
Regents of the University of Minnesota
Agricultural Utilization Research Institute
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.