USD456567SExpiredUtility

Safety helmet

69
Priority: Aug 16, 2001Filed: Aug 16, 2001Granted: Apr 30, 2002
Est. expiryAug 16, 2021(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
69
PatentIndex Score
15
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for safety helmet, shown and described.

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