Granted Patent
Utility
US 5,691,081 · App. 08/654,650
Battery containing bis(perfluoroalkylsulfonyl)imide and cyclic perfluoroalkylene disulfonylimide salts
Inventors:
Larry J. Krause, John W. Summerfield
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: May 29, 1996
Inventors
Larry J. Krause
John W. Summerfield
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.