USD417754SExpiredUtility

Protective helmet

Assignee: BERGER JAN GISLEPriority: Jul 16, 1997Filed: Jan 16, 1998Granted: Dec 14, 1999
Est. expiryJul 16, 2017(expired)· nominal 20-yr term from priority
70
PatentIndex Score
21
Cited by
7
References
1
Claims

Claims

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

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