USD523728SExpiredUtility

Hinge for a welding helmet window

65
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Nov 12, 2004Filed: Nov 12, 2004Granted: Jun 27, 2006
Est. expiryNov 12, 2024(expired)· nominal 20-yr term from priority
Inventors:Peter LeeDesmond T. CurranDaniel J. Martin
65
PatentIndex Score
13
Cited by
28
References
1
Claims

Claims

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

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