USD334971SExpiredUtility

Filter medium for an aquarium

70
Assignee: KK TOMINAGA JYUSHI KOGYOSHOPriority: Sep 5, 1990Filed: Sep 5, 1990Granted: Apr 20, 1993
Est. expirySep 5, 2010(expired)· nominal 20-yr term from priority
Inventors:Kazutoshi Tominaga
70
PatentIndex Score
14
Cited by
15
References
1
Claims

Claims

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

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