Granted Patent
Utility
US 5,693,307 · App. 08/474,806
Process for making a lithiated lithium manganese oxide spinel
Inventors:
William L. Bowden, Andrew Kallmes, Enoch I. Wang
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jun 7, 1995
Inventors
William L. Bowden
Andrew Kallmes
Enoch I. Wang
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.