USD447288SExpiredUtility
Safety helmet
Priority: Nov 8, 2000Filed: Nov 8, 2000Granted: Aug 28, 2001
Est. expiryNov 8, 2020(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
66
PatentIndex Score
14
Cited by
8
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a safety helmet, shown and described.
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