Granted Patent
Utility
US 5,652,072 · App. 08/531,598
Battery containing bis(perfluoroalkylsulfonyl)imide and cyclic perfluoroalkylene disulfonylimide salts
Inventors:
William M. Lamanna, Larry J. Krause
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 21, 1995
Inventors
William M. Lamanna
Larry J. Krause
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.