USD353548SExpiredUtility

Sump pump failure alarm

44
Individually held — no corporate assignee on recordPriority: Mar 14, 1994Filed: Mar 14, 1994Granted: Dec 20, 1994
Est. expiryMar 14, 2014(expired)· nominal 20-yr term from priority
Inventors:David K. Witzke
44
PatentIndex Score
10
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for sump pump failure alarm, as shown and described.

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