USD589654SActiveUtility

Pivot knob portion of a welding helmet

Assignee: 3M INNOVATIVE PROPERTIES COPriority: Nov 15, 2007Filed: Nov 15, 2007Granted: Mar 31, 2009

Est. expiryNov 15, 2027(~1.3 yrs left)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

CLAIM 
     
       The ornamental design for a pivot knob portion of a welding helmet, as shown and described.

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