Vent pipe using ultraviolet light for purification of...

Details Vent pipe using ultraviolet light for purification of... Vent pipe using ultraviolet light for purification of...

2008-05-12

2010-06-29

Nelson, T. Chase (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0618784

CLAIM:
The ornamental design for a vent pipe using ultraviolet light for the purification of discharge gases, as shown and described.

REFERENCES:
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patent: D262235 (1981-12-01), Hamilton
patent: D265340 (1982-07-01), Kemp
patent: D269809 (1983-07-01), Chadd
patent: 4442643 (1984-04-01), Stadheim
patent: 4461066 (1984-07-01), Peterson
patent: 5390451 (1995-02-01), Kopp et al.
patent: D379501 (1997-05-01), Airosa et al.
patent: D386577 (1997-11-01), Haydock et al.
patent: 5746653 (1998-05-01), Palmer et al.
patent: 5749780 (1998-05-01), Harder et al.
patent: D414257 (1999-09-01), Estrada

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