USD355702SExpiredUtility

Filter for attachment to an in-ear hearing aid to prevent the migration of ear wax into the hearing aid

83
Individually held — no corporate assignee on recordPriority: Dec 28, 1992Filed: Dec 28, 1992Granted: Feb 21, 1995
Est. expiryDec 28, 2012(expired)· nominal 20-yr term from priority
Inventors:Ronald Douglas Johnson
83
PatentIndex Score
24
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filter for attachment to an in-ear hearing aid to prevent the migration of ear wax into the hearing aid, as shown and described.

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