Granted Patent
Utility
US 6,808,833 · App. 10/056,175
Fuel supply for a fuel cell
Inventor:
Loren E. Johnson
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jan 22, 2002
Inventor
Loren E. Johnson
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.