USD299529SExpiredUtility
Draft intensifier for a fireplace chimney
Individually held — no corporate assignee on recordPriority: Oct 16, 1986Filed: Oct 16, 1986Granted: Jan 24, 1989
Est. expiryOct 16, 2006(expired)· nominal 20-yr term from priority
Inventors:James J. Best
71
PatentIndex Score
16
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a draft intensifier for a fireplace chimney, as shown and described.
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