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Patent
D955656
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Priority
May 12 2020
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Filed
Jul 28 2020
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Issued
Jun 21 2022
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Expiry
Jun 21 2037
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Assg.orig
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Entity
unknown
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4
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8
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n/a
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The ornamental design for a welding helmet, as shown and described.
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FIG. 1 is a perspective view of a welding helmet showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Jia, Weidong
Patent |
Priority |
Assignee |
Title |
6552316, |
Dec 29 1998 |
OTOS TECH CO , LTD |
Glare protecting device utilizing both optical and non-optical detectors and method of controlling thereof |
D310276, |
Jul 21 1988 |
Optrel AG |
Welding mask |
D393933, |
Apr 10 1996 |
Otos Optical Co., Ltd. |
Welding mask |
D481832, |
Oct 04 2002 |
OTOS OPTICAL CO , LTD |
Welding mask |
D540989, |
Aug 31 2005 |
Otos Tech Co., Ltd.; OTOS TECH CO , LTD |
Welding mask |
D793007, |
Feb 24 2016 |
NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD |
Welding helmet |
D877421, |
Jan 17 2019 |
Black & Decker, Inc. |
Welding mask |
D927790, |
Sep 06 2019 |
JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO , LTD |
Welding helmet |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a