Granted Patent
Utility
US 6,372,381 · App. 09/349,304
Duplex-coated cathode cans, and electrochemical cells made therewith
Inventors:
SangKeun Park, John Claude Springstead, David Matthew Armour
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Jul 7, 1999
Inventors
SangKeun Park
John Claude Springstead
David Matthew Armour
Assignee (at issue)
Rayovac Corporation
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.