USD455869SExpiredUtility

Safety helmet

80
Priority: Aug 16, 2001Filed: Aug 16, 2001Granted: Apr 16, 2002
Est. expiryAug 16, 2021(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
80
PatentIndex Score
24
Cited by
7
References
1
Claims

Claims

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

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