Patent
   D499215
Priority
Dec 29 2003
Filed
Dec 29 2003
Issued
Nov 30 2004
Expiry
Nov 30 2018
Assg.orig
Entity
unknown
20
10
n/a
The ornamental design for a welding helmet, as shown and described.

FIG. 1 is perspective view of a welding helmet showing my new design;

FIG. 2 is a front side elevation view thereof;

FIG. 3 is a rear side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Cheng, Chen-San

Patent Priority Assignee Title
8826464, Sep 29 2011 TECMEN ELECTRONICS CO , LTD Filter holding system for welding mask
D524991, Sep 09 2005 WALTER SURFACE TECHNOLOGIES INCORPORATED Python protective helmet
D585604, May 02 2008 WALTER SURFACE TECHNOLOGIES INCORPORATED Welding helmet
D586051, May 15 2008 WALTER SURFACE TECHNOLOGIES INCORPORATED Protective helmet
D594600, Mar 31 2008 Otos Tech Co., Ltd. Welding mask
D597709, Nov 15 2007 3M Innovative Properties Company Protective plate for a welding filter in a welding helmet
D604911, Nov 15 2007 3M Innovative Properties Company Protective plate for a welding filter in a welding helmet
D616155, Nov 25 2007 3M Innovative Properties Company Protective plate for a welding filter in a welding helmet
D628750, Jul 24 2009 Welding helmet having an automatic lighting system
D635721, Jan 13 2010 Polison Corporation Welding mask
D652577, Dec 03 2010 Seeko International Ltd. Welding helmet
D654224, Jul 22 2011 TECMEN ELECTRONICS CO , LTD Welding helmet
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D732746, Jun 05 2013 TECMEN ELECTRONICS CO , LTD Welding helmet
D734558, Dec 16 2013 TECMEN ELECTRONICS CO , LTD Welding helmet
D927790, Sep 06 2019 JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO , LTD Welding helmet
D985851, May 12 2021 Welding helmet
Patent Priority Assignee Title
D393933, Apr 10 1996 Otos Optical Co., Ltd. Welding mask
D394732, Apr 10 1996 Otos Optical Co. Ltd. Welding mask
D398421, Dec 12 1995 3M Innovative Properties Company Protective helmet
D419727, Mar 13 1998 CIGWELD PTY LTD Light shielding helmet
D431328, Apr 09 1999 JPCA, INC Two-piece welding helmet
D446887, Sep 24 1999 OTOS TECH CO , LTD Welding mask
D481832, Oct 04 2002 OTOS OPTICAL CO , LTD Welding mask
D482502, May 08 2002 Otos Optical Co., Ltd. Welding mask
D482503, Oct 04 2002 OTOS OPTICAL CO , LTD Welding mask
D489492, Mar 21 2003 HARBOR FREIGHT TOOLS USA, INC Welding mask
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Dec 15 2003CHENG, CHEN-SANPolison CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0148490733 pdf
Dec 29 2003Polison Corporation(assignment on the face of the patent)
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