Patent
   D518923
Priority
Nov 12 2004
Filed
Nov 12 2004
Issued
Apr 11 2006
Expiry
Apr 11 2020
Assg.orig
Entity
unknown
22
24
n/a
The ornamental design for a top portion of a welding helmet, as shown and described.

FIG. 1 is a front perspective view of a top portion of a welding helmet showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view, the right side being a mirror image thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The details shown in broken lines form no part of the claimed design.

Curran, Desmond T., Lee, Peter D., Martin, Daniel

Patent Priority Assignee Title
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Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 04 2004LEE, PETER D3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0159970700 pdf
Oct 08 2004MARTIN, DANIEL3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0159970700 pdf
Oct 12 2004CURRAN, DESMOND T 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0159970700 pdf
Nov 12 20043M Innovative Properties Company(assignment on the face of the patent)
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