Trackball

- Silitek Corporation
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Description

FIG. 1 is the perspective view of a design for trackball showing my design;

FIG. 2 is the front elevational view thereof;

FIG. 3 is the rear elevational view thereof;

FIG. 4 is the left side elevational view thereof;

FIG. 5 is the right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D292600 November 3, 1987 Wagner
D297952 October 4, 1988 Ishiwata
D342241 December 14, 1993 Ashmun et al.
D348083 June 21, 1994 Smith, III et al.
4952919 August 28, 1990 Nippoldt
5122654 June 16, 1992 Koh et al.
Patent History
Patent number: D361760
Type: Grant
Filed: Dec 17, 1993
Date of Patent: Aug 29, 1995
Assignee: Silitek Corporation (Taipei)
Inventor: Stephen Chung (Taipei Hsien)
Primary Examiner: Melanie H. Tung
Law Firm: Browdy and Neimark
Application Number: 0/16,466
Classifications
Current U.S. Class: D14/114