USD311702SExpiredUtility
Sump pump failure alarm
Individually held — no corporate assignee on recordPriority: Aug 6, 1987Filed: Aug 6, 1987Granted: Oct 30, 1990
Est. expiryAug 6, 2007(expired)· nominal 20-yr term from priority
Inventors:Jeffrey Kern
36
PatentIndex Score
7
Cited by
0
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a sump pump failure alarm, as shown and described.
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