Palm-top type wireless trackball

Description

FIG. 1 is a perspective view of palm-top type wireless trackball showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a 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
D331043 November 17, 1992 Yang
D340706 October 26, 1993 Hu
5001467 March 19, 1991 Chien
Patent History
Patent number: D372231
Type: Grant
Filed: Jun 16, 1995
Date of Patent: Jul 30, 1996
Inventor: Jarlance Huang (Chung Li, Tao Yuan Hsien)
Primary Examiner: Freda Nunn
Law Firm: Bacon & Thomas
Application Number: 0/40,373
Classifications
Current U.S. Class: D14/114