Welding helmet
Description
Claims
The ornamental design for a welding helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
D398421 | September 15, 1998 | Crafoord et al. |
D443394 | June 5, 2001 | Martin et al. |
D524991 | July 11, 2006 | Martin et al. |
D553802 | October 23, 2007 | Huh |
D565800 | April 1, 2008 | Wang |
D565801 | April 1, 2008 | Curci et al. |
D585604 | January 27, 2009 | Martin |
D586051 | February 3, 2009 | Martin et al. |
D586956 | February 17, 2009 | Huh |
D594600 | June 16, 2009 | Huh |
20070079417 | April 12, 2007 | Huh |
Patent History
Patent number: D637353
Type: Grant
Filed: Mar 16, 2010
Date of Patent: May 3, 2011
Inventor: Xuegang Wang (Taian)
Primary Examiner: Ruth McInroy
Attorney: Hanley, Flight & Zimmerman, LLC
Application Number: 29/357,716
Type: Grant
Filed: Mar 16, 2010
Date of Patent: May 3, 2011
Inventor: Xuegang Wang (Taian)
Primary Examiner: Ruth McInroy
Attorney: Hanley, Flight & Zimmerman, LLC
Application Number: 29/357,716
Classifications
Current U.S. Class:
Including Transparent Eye Shield (e.g., Welder's Mask, Glare Shield) (D29/110)