Granted Patent
Utility
US 5,733,685 · App. 08/679,497
Method of treating lithium manganese oxide spinel
Inventor:
Enoch I. Wang
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Jul 12, 1996
Inventor
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.