Ring-type cooling fan

Details Ring-type cooling fan Ring-type cooling fan

2000-09-21

2001-08-07

Lichtenstein, Lisa (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0446295

CLAIM:
The ornamental design for a ring-type cooling fan, as shown and described.

REFERENCES:
patent: 3842902 (1974-10-01), Postesny
patent: 3883264 (1975-05-01), Rao
patent: 4189281 (1980-02-01), Katagiri et al.
patent: 4222710 (1980-09-01), Katagiri et al.
patent: 4265596 (1981-05-01), Katagiri et al.
patent: 4406581 (1983-09-01), Robb et al.
patent: 4566852 (1986-01-01), Hauser
patent: 5769607 (1998-06-01), Neely et al.
patent: 6065937 (2000-05-01), Hunt

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