USD387500SExpiredUtility

Safety helmet

52
Assignee: WEN-TSAI CHIANGPriority: Jul 18, 1996Filed: Jul 18, 1996Granted: Dec 9, 1997
Est. expiryJul 18, 2016(expired)· nominal 20-yr term from priority
Inventors:Chiang Wen-Tsai
52
PatentIndex Score
15
Cited by
8
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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