Welding helmet
Description
Claims
We claim 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: D585604
Type: Grant
Filed: May 2, 2008
Date of Patent: Jan 27, 2009
Assignee: Optical Engineering Company, LLC. (Taunton, MA)
Inventor: Edward L. Martin (Sharon, MA)
Primary Examiner: Ruth McInroy
Attorney: Pearson & Pearson, LLP.
Application Number: 29/307,659
Type: Grant
Filed: May 2, 2008
Date of Patent: Jan 27, 2009
Assignee: Optical Engineering Company, LLC. (Taunton, MA)
Inventor: Edward L. Martin (Sharon, MA)
Primary Examiner: Ruth McInroy
Attorney: Pearson & Pearson, LLP.
Application Number: 29/307,659
Classifications
Current U.S. Class:
Including Transparent Eye Shield (e.g., Welder's Mask, Glare Shield) (D29/110)