Granted Patent
Utility
US 6,370,903 · App. 09/808,606
Heat-pump type air conditioning and heating system for fuel cell vehicles
Inventor:
Dick Philip Wlech
Patented Case
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Granted: Apr 16, 2002
Filed: Mar 14, 2001
Inventor
Dick Philip Wlech
Assignee (at issue)
Visteon Global Technologies, Inc.
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.