Impeller

Details Impeller Impeller

2002-12-23

2004-02-03

Seifert, Ralf (Department: 2914)

Machines not elsewhere specified

Pump or compressor

Design Patent

active

D0486158

CLAIM:
The ornamental design for an impeller, as shown and described herein.

REFERENCES:
patent: 2465671 (1949-03-01), Millingen et al.
patent: 4093401 (1978-06-01), Gravelle
patent: D258588 (1981-03-01), Sugiura
patent: D258589 (1981-03-01), Sugiura
patent: 4904158 (1990-02-01), Kun
patent: 5328333 (1994-07-01), Quinn
patent: 5588803 (1996-12-01), Vetter et al.
patent: 5620306 (1997-04-01), Day
patent: D382881 (1997-08-01), Hoglund et al.
patent: 6210116 (2001-04-01), Kuczaj et al.
patent: D443281 (2001-06-01), Sodergard

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