Granted Patent
Utility
US 6,139,302 · App. 09/111,502
Powder delivery system for electrode production
Inventors:
Edward F. Wood, Jeffrey Key
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Jul 7, 1998
Inventors
Edward F. Wood
Jeffrey Key
Assignee (at issue)
Ovonic Battery Company, 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.