Trackball for computer system monitor
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Description
FIG. 1 is a top front and side perspective view of a trackball for computer system showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a front elevational view thereof; and,
FIGS. 6 and 7 are, respectively, right and left side elevational views thereof.
Referenced Cited
Patent History
Patent number: D328458
Type: Grant
Filed: Apr 9, 1990
Date of Patent: Aug 4, 1992
Assignee: Microspeed Inc. (Fremont, CA)
Inventor: Timothy C. Barry (Fremont, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Freda S. Nunn
Law Firm: Skjerven, Morrill, MacPherson, Franklin & Friel
Application Number: 7/507,057
Type: Grant
Filed: Apr 9, 1990
Date of Patent: Aug 4, 1992
Assignee: Microspeed Inc. (Fremont, CA)
Inventor: Timothy C. Barry (Fremont, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Freda S. Nunn
Law Firm: Skjerven, Morrill, MacPherson, Franklin & Friel
Application Number: 7/507,057
Classifications
Current U.S. Class:
D14/114