Welding helmet
Description
In the drawings, the features shown in broken lines in
Claims
The ornamental design for a welding helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D669227
Type: Grant
Filed: May 3, 2011
Date of Patent: Oct 16, 2012
Inventor: Xuegang Wang (Taian)
Primary Examiner: Elizabeth J Oswecki
Attorney: Hanley, Flight & Zimmerman, LLC
Application Number: 29/391,108
Type: Grant
Filed: May 3, 2011
Date of Patent: Oct 16, 2012
Inventor: Xuegang Wang (Taian)
Primary Examiner: Elizabeth J Oswecki
Attorney: Hanley, Flight & Zimmerman, LLC
Application Number: 29/391,108
Classifications
Current U.S. Class:
Including Transparent Eye Shield (e.g., Welder's Mask, Glare Shield) (D29/110)