Ceiling ventilator

Details Ceiling ventilator Ceiling ventilator

2007-05-22

2007-05-22

Lichtenstein, Lisa (Department: 2916)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

29261986

CLAIM:
We claim the ornamental design for a ceiling ventilator, as shown and described.

REFERENCES:
patent: D153313 (1949-04-01), Phillips
patent: D282972 (1986-03-01), Castor et al.
patent: D287888 (1987-01-01), Castor et al.
patent: D372775 (1996-08-01), Schuler
patent: D387859 (1997-12-01), Ukai et al.
patent: D403787 (1999-01-01), Van Belle
patent: D404122 (1999-01-01), Hayashi et al.
patent: D457232 (2002-05-01), Miura
patent: D457616 (2002-05-01), Yamanaka et al.
patent: D490147 (2004-05-01), Miura
patent: D510996 (2005-10-01), Vladika

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