USD518923SExpiredUtility

Top portion of a welding helmet

85
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Nov 12, 2004Filed: Nov 12, 2004Granted: Apr 11, 2006
Est. expiryNov 12, 2024(expired)· nominal 20-yr term from priority
Inventors:Desmond T. CurranPeter LeeDaniel J. Martin
85
PatentIndex Score
30
Cited by
31
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a top portion of a welding helmet, as shown and described.

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