USD263253SExpiredUtility

Combined hearing aid volume control knob and adapter ring

Individually held — no corporate assignee on recordPriority: Sep 7, 1979Filed: Sep 7, 1979Granted: Mar 2, 1982
Est. expirySep 7, 1999(expired)· nominal 20-yr term from priority
29
PatentIndex Score
4
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined hearing aid volume control knob and adapter ring, as shown and described.

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