USD285257SExpiredUtility
Smokestack
Individually held — no corporate assignee on recordPriority: Apr 21, 1983Filed: Apr 21, 1983Granted: Aug 19, 1986
Est. expiryApr 21, 2003(expired)· nominal 20-yr term from priority
Inventors:Alfons O. Krautz
46
PatentIndex Score
4
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a smokestack, substantially as shown.
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