USD427998SExpiredUtility

Noise cancellation device

49
Assignee: UMEVOICE INCPriority: Jul 20, 1999Filed: Jul 20, 1999Granted: Jul 11, 2000
Est. expiryJul 20, 2019(expired)· nominal 20-yr term from priority
Inventors:Joseph B. TateSteven B. WolffVidya Sagar Rao
49
PatentIndex Score
7
Cited by
25
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a noise cancellation device, as shown and described.

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