USD251439SExpiredUtility

Air outlet for round duct

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Assignee: RSC AIR CONDITIONING SERVICE INCPriority: Dec 27, 1976Filed: Dec 27, 1976Granted: Mar 27, 1979
Est. expiryDec 27, 1996(expired)· nominal 20-yr term from priority
Inventors:Kenneth R. Petro
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PatentIndex Score
0
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air outlet for round duct, as shown and described.

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