Granted Patent
Utility
US 5,840,371 · App. 08/887,507
Treatment for improved conductivity of collector-electrode interface in laminated lithium-ion rechargeable batteries
Inventor:
Paul C. Warren
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Jul 2, 1997
Inventor
Paul C. Warren
Assignee (at issue)
Bell Communications Research, 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.