USD338530SExpiredUtility

Hearing aid

74
Assignee: AUDIO SCIENCE INCPriority: Sep 20, 1991Filed: Sep 20, 1991Granted: Aug 17, 1993
Est. expirySep 20, 2011(expired)· nominal 20-yr term from priority
Inventors:Dennis A. Oberlander
74
PatentIndex Score
21
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a hearing aid, as shown and described.

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