USD504172SExpiredUtility
Primary roof vent
Priority: Apr 27, 2004Filed: Apr 27, 2004Granted: Apr 19, 2005
Est. expiryApr 27, 2024(expired)· nominal 20-yr term from priority
Inventors:Harry T. O'Hagin
82
PatentIndex Score
26
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a primary roof vent, as shown and described.
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