USD407462SExpiredUtility

Water purification unit

87
Assignee: WATER RESOURCES INT INCPriority: Jul 9, 1997Filed: Jul 9, 1997Granted: Mar 30, 1999
Est. expiryJul 9, 2017(expired)· nominal 20-yr term from priority
Inventors:Jerry M. BishopDouglas M. Horn
87
PatentIndex Score
55
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a water purification unit, as shown and described.

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