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Publication numberUSD538979 S1
Publication typeGrant
Application numberUS 29/238,522
Publication dateMar 20, 2007
Filing dateSep 16, 2005
Priority dateSep 16, 2005
Publication number238522, 29238522, US D538979 S1, US D538979S1, US-S1-D538979, USD538979 S1, USD538979S1
InventorsTheo Grepper, Martin Knopfli
Original AssigneeTheo Grepper, Martin Knopfli
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US D538979 S1
Abstract  available in
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  1. The ornamental design for a helmet, as shown and described.

FIG. 1 is a front view of the invention.

FIG. 2 is a rear view of the invention.

FIG. 3 is a right side view of the invention.

FIG. 4 is a left side view of the invention; and,

FIG. 5 is a top view of the invention.

U.S. ClassificationD29/102