Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Design Patent
2008-04-22
2008-12-23
Lichtenstein, Lisa P (Department: 2916)
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Design Patent
active
D0583461
CLAIM:
The ornamental design for an impeller, as shown and described.
REFERENCES:
patent: 6457953 (2002-10-01), Bradbury et al.
patent: D486572 (2004-02-01), Chen et al.
patent: D509584 (2005-09-01), Li et al.
patent: D571000 (2008-06-01), Bei et al.
Lichtenstein Lisa P
Palomar Patent
Tervo Calif
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