Patent
   D333818
Priority
Aug 02 1991
Filed
Aug 02 1991
Issued
Mar 09 1993
Expiry
Mar 09 2007
Assg.orig
Entity
unknown
9
5
n/a
The ornamental design for a track ball, as shown and described.

FIG. 1 is a front, top, right side perspective view of a track ball showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an inverted rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

Yang, Tso S.

Patent Priority Assignee Title
D352039, May 19 1992 Sun Microsystems Microphone for computer
D355899, Oct 30 1992 Microsoft Corporation Combined pointing device and coupling assembly
D361759, Oct 30 1992 Tokai Corporation Pointing device and a coupling assembly
D361991, Sep 04 1992 Combined trackball and mouse
D368721, Jan 27 1995 Polycom, Inc Videoconferencing control panel
D448365, Feb 29 2000 Microsoft Corporation Communication controller
D473546, Mar 22 2002 Polycom, Inc. Integrated audio/video call control pod
D834022, Apr 03 2017 LOGITECH EUROPE S A Input device with track ball
D885388, Jan 21 2019 Group Intellect Technology Limited Trackball
Patent Priority Assignee Title
4538476, May 12 1983 Cursor control assembly
4952919, Apr 06 1989 ACCELRYS INC Trackball mechanism
D272921, Feb 04 1982 SUPERIOR HOLDING OF AMERICA, INC Control for a video game or the like
D289306, Nov 16 1984 WICO DISTRIBUTION COMPANY, L P , 6400 WEST GROSS POINT ROAD, NILES, ILLINOIS 60648 Trackball
D326261, Oct 22 1990 MICROSOFT CORPORATION, A CORP OF DELAWARE Trackball for computer
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