USD428534SExpiredUtility

Safety helmet

90
Assignee: HO CHANG-HSIENPriority: Jun 25, 1999Filed: Jun 25, 1999Granted: Jul 18, 2000
Est. expiryJun 25, 2019(expired)· nominal 20-yr term from priority
Inventors:Chang-Hsien Ho
90
PatentIndex Score
36
Cited by
3
References
1
Claims

Claims

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

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