USD445544SExpiredUtility

Safety helmet

73
Priority: Feb 4, 2000Filed: Jul 19, 2000Granted: Jul 24, 2001
Est. expiryFeb 4, 2020(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
73
PatentIndex Score
18
Cited by
6
References
1
Claims

Claims

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

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