Patent
   D332093
Priority
Feb 21 1991
Filed
Feb 21 1991
Issued
Dec 29 1992
Expiry
Dec 29 2006
Assg.orig
Entity
unknown
7
7
n/a
The ornamental design for a computer track ball, as shown and described.

FIG. 1 is a perspective view of a computer track ball showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevational view thereof, the left side being a mirror image.

Yang, Tso S.

Patent Priority Assignee Title
D406825, Jun 10 1997 Combined keyswitch and joystick for a computer keyboard
D487744, Jun 23 2000 Computer mouse
D550672, Nov 03 2005 Hosiden Corporation Computer mouse
D563957, Jun 19 2006 LOGITECH EUROPE S A Computer mouse
D610585, Jun 06 2006 Darfon Electronics Corp. Mouse
D834020, Feb 24 2016 SOCIÉTÉ CIVILE “GALILEO 2011”; SOCIÉTÉ CIVILE GALILEO 2011 Computer input device
D885388, Jan 21 2019 Group Intellect Technology Limited Trackball
Patent Priority Assignee Title
4831736, Sep 29 1987 Carriage for a computer mouse
5006836, Jun 14 1988 3M Innovative Properties Company Squeezable computer control device
D288930, Jun 27 1984 Hewlett-Packard Company Computer mouse
D291318, Jan 14 1985 WICO DISTRIBUTION CORP , A DE CORP Combined trackball and mouse
D302010, Jul 21 1986 Itac Systems, Inc. Computer cursor control
D303662, Feb 09 1988 Sun Microsystems, Inc. Cursor control
D315552, Dec 22 1989 CURTIS COMPUTER PRODUCTS, INC Trackball for a computer
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