USD830003SActiveUtility

Flip-up auto darkening welding helmet

61
Assignee: TECMEN ELECTRONICS CO LTDPriority: Oct 17, 2016Filed: Mar 10, 2017Granted: Oct 2, 2018
Est. expiryOct 17, 2036(~10.2 yrs left)· nominal 20-yr term from priority
Inventors:Ziqian Wu
61
PatentIndex Score
8
Cited by
12
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a flip-up auto darkening welding helmet, as shown and described.

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