USD314820SExpiredUtility
Air duct boot
Individually held — no corporate assignee on recordPriority: May 22, 1987Filed: May 22, 1987Granted: Feb 19, 1991
Est. expiryMay 22, 2007(expired)· nominal 20-yr term from priority
Inventors:John F. Sullivan
76
PatentIndex Score
16
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an air duct boot, as shown and described.
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