USD567451SExpiredUtility
Flip-up helmet
Est. expiryFeb 16, 2026(expired)· nominal 20-yr term from priority
Inventors:Stephane Dion
72
PatentIndex Score
19
Cited by
8
References
1
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exact text as granted — not AI-modifiedCLAIM
The ornamental design for a flip-up helmet, as shown and described.Cited by (0)
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