Granted Patent
Utility
US 6,579,643 · App. 09/447,772
Separator having a plasticizer coating for use in electrochemical cell devices
Inventor:
Antoni S. Gozdz
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Nov 23, 1999
Inventor
Antoni S. Gozdz
Assignee (at issue)
Valence Technology, 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.