Granted Patent
Utility
US 6,713,201 · App. 10/002,777
Systems including replaceable fuel cell apparatus and methods of using replaceable fuel cell apparatus
Inventors:
Michael L. Bullock, Winthrop D. Childers
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Oct 29, 2001
Inventors
Michael L. Bullock
Winthrop D. Childers
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.