USD549222SActiveUtility
Earplug type earphone
Est. expiryJul 10, 2026(expired)· nominal 20-yr term from priority
Inventors:Ying-Shih Huang
A61F 11/08
95
PatentIndex Score
189
Cited by
8
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for an earplug type earphone, as shown.Join the waitlist — get patent alerts
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