Wastewater treatment tank

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Description

FIG. 1 is a perspective view.

Referenced Cited
U.S. Patent Documents
D226192 January 1973 Boyd
D239506 April 1976 Myers
D347257 May 24, 1994 McGrew
D357530 April 18, 1995 Grenier et al.
4325823 April 20, 1982 Graham
Patent History
Patent number: D431858
Type: Grant
Filed: Mar 2, 1998
Date of Patent: Oct 10, 2000
Inventor: Harold K. Nagato (Honolulu, HI)
Primary Examiner: Robin V. Taylor
Application Number: 0/84,396
Classifications
Current U.S. Class: Storage Tank (D23/202)
International Classification: 2301;