USD425894SExpiredUtility
Megaphone
Est. expiryApr 26, 2019(expired)· nominal 20-yr term from priority
Inventors:Chao-Chih Chang
39
PatentIndex Score
5
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5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for megaphone, as shown and discribed.
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