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Publication numberUSD328458 S
Publication typeGrant
Application numberUS 07/507,057
Publication dateAug 4, 1992
Filing dateApr 9, 1990
Publication number07507057, 507057, US D328458 S, US D328458S, US-S-D328458, USD328458 S, USD328458S
InventorsTimothy C. Barry
Original AssigneeMicrospeed Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Trackball for computer system monitor
US D328458 S
Abstract  available in
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  1. The ornamental design for a trackball for computer system monitor, as shown and described.

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

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIGS. 6 and 7 are, respectively, right and left side elevational views thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD766243Apr 27, 2015Sep 13, 2016Apple Inc.Mouse
U.S. ClassificationD14/417