USD314270SExpiredUtility
Concrete chute
Individually held — no corporate assignee on recordPriority: Apr 3, 1989Filed: Apr 3, 1989Granted: Jan 29, 1991
Est. expiryApr 3, 2009(expired)· nominal 20-yr term from priority
Inventors:David Bryant
55
PatentIndex Score
8
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a concrete chute, as shown.
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