Primary roof vent

Details Primary roof vent Primary roof vent

2005-04-19

2005-04-19

Zarfas, Louis S. (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0504172

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

REFERENCES:
patent: D390943 (1998-02-01), Kelly
patent: D457234 (2002-05-01), O'Hagin et al.
patent: 6447390 (2002-09-01), O'Hagin
patent: 6491579 (2002-12-01), O'Hagin
patent: D469889 (2003-02-01), O'Hagin

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