Roof vent

Details Roof vent Roof vent

2007-02-13

2007-02-13

Zarfas, Louis (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

29226838

CLAIM:
The ornamental design for a roof vent, as shown and described.

REFERENCES:
patent: D132821 (1942-06-01), Leslie
patent: D134477 (1942-12-01), Leslie
patent: 2692548 (1954-10-01), Knorr
patent: D261924 (1981-11-01), Donohue
patent: 5832677 (1998-11-01), Kurttila
patent: 6129628 (2000-10-01), O'Hagin et al.
patent: D433496 (2000-11-01), Hadley
patent: D452919 (2002-01-01), Ohanesian
patent: 6447390 (2002-09-01), O'Hagin
patent: 6491579 (2002-12-01), O'Hagin
patent: 6733381 (2004-05-01), Ploeger
patent: 7044852 (2006-05-01), Horton
patent: D526402 (2006-08-01), Achen

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