Air purifier

Details Air purifier Air purifier

2006-09-08

2008-11-11

Zarfas, Louis S (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

CD23S381000

Design Patent

active

D0580539

CLAIM:
The ornamental design for an air purifier, as shown and described.

REFERENCES:
patent: D274748 (1984-07-01), Aberg
patent: D281276 (1985-11-01), Farrer
patent: D290872 (1987-07-01), Kouno et al.
patent: D300776 (1989-04-01), Fu et al.
patent: D310712 (1990-09-01), Del Fresno
patent: D334056 (1993-03-01), Cook
patent: D339858 (1993-09-01), Shong
patent: D361832 (1995-08-01), Cunning
patent: D387151 (1997-12-01), Fok
patent: D546436 (2007-07-01), Chen
patent: D564084 (2008-03-01), Chen
patent: D565721 (2008-04-01), Chen
patent: D566260 (2008-04-01), Chen

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