Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent
2005-08-16
2005-08-16
Lichtenstein, Lisa (Department: 2911)
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
Design Patent
active
D0508560
CLAIM:
The ornamental design for an impeller, as shown and described herein.
REFERENCES:
patent: D366935 (1996-02-01), Arthun et al.
patent: 6137681 (2000-10-01), Lu
patent: 6579064 (2003-06-01), Hsieh
Chang Shun-Chen
Chiu Yung-Yu
Huang Wen-Shi
Lin Kuo-Cheng
Birch & Stewart Kolasch & Birch, LLP
Delta Electronics , Inc.
Lichtenstein Lisa
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