USD932107SActiveUtility

Auto darkening filter for a welding helmet

65
Assignee: LINCOLN GLOBAL INCPriority: Oct 1, 2019Filed: Oct 1, 2019Granted: Sep 28, 2021
Est. expiryOct 1, 2039(~13.2 yrs left)· nominal 20-yr term from priority
Inventors:Chase P. Rutti
65
PatentIndex Score
9
Cited by
27
References
1
Claims

Claims

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

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