USD320838SExpiredUtility

Combined air supply line and manifold for aerating a pond or lake on fish farms

14
Individually held — no corporate assignee on recordPriority: Jan 9, 1989Filed: Jan 9, 1989Granted: Oct 15, 1991
Est. expiryJan 9, 2009(expired)· nominal 20-yr term from priority
Inventors:Hilbert F. Carlson
14
PatentIndex Score
2
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for combined air supply line and manifold for aerating a pond or lake on fish farms, as shown.

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