USD293706SExpiredUtility

Undergravel fishtank filter

31
Assignee: VENY PLASTIC COMPANY LTDPriority: Nov 19, 1985Filed: Dec 11, 1985Granted: Jan 12, 1988
Est. expiryNov 19, 2005(expired)· nominal 20-yr term from priority
Inventors:Ying Yuk Ng
31
PatentIndex Score
2
Cited by
3
References
1
Claims

Claims

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

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