USD292934SExpiredUtility
Irrigation water drainage unit
Individually held — no corporate assignee on recordPriority: Mar 21, 1985Filed: Mar 21, 1985Granted: Nov 24, 1987
Est. expiryMar 21, 2005(expired)· nominal 20-yr term from priority
Inventors:Daryl D. Alberico
68
PatentIndex Score
16
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an irrigation water drainage unit, as shown and described.
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