Granted Patent
Utility
US 5,607,485 · App. 08/445,446
Method of making polymeric electrolytic cell separator membrane
Inventors:
Antoni S. Gozdz, Caroline N. Schmutz, Jean-Marie Tarascon, Paul C. Warren
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: May 19, 1995
Inventors
Antoni S. Gozdz
Caroline N. Schmutz
Jean-Marie Tarascon
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.