Granted Patent
Utility
US 6,179,979 · App. 09/068,828
Electrochemical cell
Inventors:
Alastair M. Hodges, Thomas William Beck, Oddvar Johansen, Ian Andrew Maxwell
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Mar 15, 1999
Inventors
Alastair M. Hodges
Thomas William Beck
Oddvar Johansen
Ian Andrew Maxwell
Assignee (at issue)
USF Filtration and Separations Group, 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.