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Publication numberUSD315552 S
Publication typeGrant
Application numberUS 07/455,739
Publication dateMar 19, 1991
Filing dateDec 22, 1989
Publication number07455739, 455739, US D315552 S, US D315552S, US-S-D315552, USD315552 S, USD315552S
InventorsJames E. Sacherman
Original AssigneeCurtis Manufacturing Company, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Trackball for a computer
US D315552 S
Abstract  available in
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  1. The ornamental design for a trackball for a computer, as shown and described.

FIG. 1 is a top, front, right side perspective view of a trackball for a computer showing my new design;

FIG. 2 is a top plan view thereof on a greatly enlarged scale;

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

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6922186Mar 15, 2002Jul 26, 2005Curtis WhitcombErgonomic computer mouse
U.S. ClassificationD14/417