USD635721SActiveUtility

Welding mask

82
Assignee: POLISON CORPPriority: Jan 13, 2010Filed: Jan 13, 2010Granted: Apr 5, 2011
Est. expiryJan 13, 2030(~3.4 yrs left)· nominal 20-yr term from priority
Inventors:Chen-San Cheng
82
PatentIndex Score
32
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for welding mask, as shown and described.

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