Computer trackball

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a computer trackball showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view, the left side elevational view being a mirror image;

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

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D291318 August 11, 1987 Kim
D302010 July 4, 1989 McLaughlin et al.
D313589 January 8, 1991 Martinelli et al.
D315552 March 19, 1991 Sacherman
Patent History
Patent number: D384047
Type: Grant
Filed: Feb 9, 1996
Date of Patent: Sep 23, 1997
Assignee: Kensington Microware Limited (San Mateo, CA)
Inventors: Mark A. Edwards (Dublin, CA), Robin Chu (San Francisco, CA)
Primary Examiner: Freda Nunn
Law Firm: Townsend and Townsend and Crew LLP
Application Number: 0/50,150
Classifications
Current U.S. Class: D14/114
International Classification: 1402;