Granted Patent
Utility
US 6,667,128 · App. 09/872,743
Fuel cells and fuel cell systems containing non-aqueous electrolytes
Inventor:
David J. Edlund
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: Jun 1, 2001
Inventor
David J. Edlund
Assignee (at issue)
Idatech, LLC
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.