USD328331SExpiredUtility

Water softener

44
Assignee: ECOWATER SYSTEMS INCPriority: Nov 30, 1990Filed: Nov 30, 1990Granted: Jul 28, 1992
Est. expiryNov 30, 2010(expired)· nominal 20-yr term from priority
Inventors:Michael E. DragerEdward J. TischlerDennis G. Winberg
44
PatentIndex Score
5
Cited by
1
References
1
Claims

Claims

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

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