USD490939SExpiredUtility
Safety helmet
Priority: Jan 23, 2003Filed: Jan 23, 2003Granted: Jun 1, 2004
Est. expiryJan 23, 2023(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
78
PatentIndex Score
22
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a safety helmet, as shown and described.
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