Granted Patent
Utility
US 6,673,487 · App. 09/975,711
Double current collector cathode design using the same active material in varying thicknesses for alkali metal or ION electrochemical cells
Inventors:
Hong Gan, Esther S. Takeuchi
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Oct 11, 2001
Inventors
Hong Gan
Esther S. Takeuchi
Assignee (at issue)
Wilson Greatbatch, Ltd.
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.