USD307626SExpiredUtility

Aquarium filter cartridge

57
Assignee: WILLINGER BROSPriority: Oct 30, 1987Filed: Oct 30, 1987Granted: May 1, 1990
Est. expiryOct 30, 2007(expired)· nominal 20-yr term from priority
Inventors:Allan H. Willinger
57
PatentIndex Score
7
Cited by
5
References
1
Claims

Claims

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

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