Granted Patent
Utility
US 5,962,162 · App. 08/948,512
Lithium ion polymer cell separator
Inventors:
Joseph N. Barrella, Michael Manna
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Oct 10, 1997
Inventors
Joseph N. Barrella
Michael Manna
Assignee (at issue)
Ultralife Batteries, 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.