Granted Patent
Utility
US 6,833,217 · App. 10/042,750
Battery cathode
Inventors:
Douglas Woodnorth, Peter B. Harris, Gregory A. Fariss, Barbara Brys
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: May 22, 2002
Inventors
Douglas Woodnorth
Peter B. Harris
Gregory A. Fariss
Barbara Brys
Assignee (at issue)
Duracell 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.