Granted Patent
Utility
US 6,444,340 · App. 09/486,501
Electrical conductivity in a fuel cell assembly
Inventor:
Donald Jaffrey
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: May 30, 2000
Inventor
Donald Jaffrey
Assignee (at issue)
CERAMIC FUEL CELLS LIMITED
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.