USD342306SExpiredUtility

Nitrogen-removing aquarium filter

15
Individually held — no corporate assignee on recordPriority: Jun 8, 1989Filed: Jun 8, 1989Granted: Dec 14, 1993
Est. expiryJun 8, 2009(expired)· nominal 20-yr term from priority
Inventors:Forrest A. Young
15
PatentIndex Score
2
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a nitrogen-removing aquarium filter, as shown and described.

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