USD317966SExpiredUtility

Aquarium filter

55
Assignee: WILLINGER BROSPriority: Aug 15, 1988Filed: Aug 15, 1988Granted: Jul 2, 1991
Est. expiryAug 15, 2008(expired)· nominal 20-yr term from priority
Inventors:Allan H. Willinger
55
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an aquarium filter, as shown.

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