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Publication numberUSD621039 S1
Publication typeGrant
Application numberUS 29/341,360
Publication dateAug 3, 2010
Filing dateAug 4, 2009
Priority dateAug 4, 2009
Publication number29341360, 341360, US D621039 S1, US D621039S1, US-S1-D621039, USD621039 S1, USD621039S1
InventorsSteven J. Maxa, Adam J. Cernohous
Original Assignee3M Innovative Properties Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Grooved piston
US D621039 S1
Images(2)
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Claims(1)
  1. The ornamental design for a grooved piston, as shown and described.
Description

FIG. 1 is a perspective view of a top perspective view showing the new design for a grooved piston;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The portions of the grooved piston shown in broken lines form no part of the claimed design.

Classifications
U.S. ClassificationD24/130