Granted Patent
Utility
US 6,492,053 · App. 09/445,735
Planar fuel cell assembly
Inventors:
Richard K. Donelson, Darren Hickey
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Apr 10, 2000
Inventors
Richard K. Donelson
Darren Hickey
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.