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Publication numberUSD399212 S
Publication typeGrant
Application numberUS 29/050,162
Publication dateOct 6, 1998
Filing dateFeb 9, 1996
Publication number050162, 29050162, US D399212 S, US D399212S, US-S-D399212, USD399212 S, USD399212S
InventorsRonald W. Roderweiss, Frederick P. Hall
Original AssigneeHd Performance Products Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Radiused piston head
US D399212 S
Abstract  available in
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  1. The ornamental design for a radiused piston head, as shown.

FIG. 1 is a top perspective view;

FIG. 2 is a bottom perspective view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a side view;

FIG. 6 is a side view;

FIG. 7 is a side view; and,

FIG. 8 is a side view.

Non-Patent Citations
1Freiburger, Operation Rumble Bee, Part 2: 30 Years and 750 Horsepower, Hot Rod, Jan. 1996, pp. 58-63.
2More Bang for your Baby, Big Twin, Spring 1996, p. 92.
Referenced by
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US8291911May 17, 2010Oct 23, 20123M Innovative Properties CompanyEarplug
US8656927Sep 14, 2012Feb 25, 20143M Innovative Properties CompanyEarplug
US20100300460 *May 17, 2010Dec 2, 20103M Innovative Properties CompanyEarplug
USD658282 *Jan 18, 2010Apr 24, 20123M Innovative Properties CompanyEarplug tip
USD737861 *Oct 30, 2009Sep 1, 2015Caterpillar Inc.Engine piston
USD782561 *Dec 4, 2015Mar 28, 2017Livestream LLCReplaceable cover for a camera
U.S. ClassificationD15/5