Granted Patent
Utility
US 6,071,647 · App. 08/953,051
Lithium and manganese double oxides for the positive electrodes of electrochemical devices, preparation thereof, and electrodes including such oxides
Inventors:
Nadine Treuil, Josik Portier, Guy Campet, Josette Ledran, Jean-Claude Frison
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Oct 17, 1997
Inventors
Nadine Treuil
Josik Portier
Guy Campet
Josette Ledran
Jean-Claude Frison
Assignee (at issue)
FRANCE TELECOM
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.