USD457491SExpiredUtility

Ultrasonic transducer

34
Assignee: AMERICAN SIGMA INCPriority: Dec 22, 1997Filed: Dec 22, 1997Granted: May 21, 2002
Est. expiryDec 22, 2017(expired)· nominal 20-yr term from priority
Inventors:Donald F. KaiserJeff ValeryEarl Mccullough
34
PatentIndex Score
4
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an ultrasonic transducer, as shown and described.

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