USD449592SExpiredUtility

Stereophone ear plug insert

Assignee: KOSS CORPPriority: Feb 25, 1999Filed: Nov 17, 1999Granted: Oct 23, 2001
Est. expiryFeb 25, 2019(expired)· nominal 20-yr term from priority
87
PatentIndex Score
30
Cited by
19
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a stereophone ear plug insert, as shown and described.

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