Trackball for computer system monitor
Barry August 4, 1
U.S. patent number D328,458 [Application Number 07/507,057] was granted by the patent office on 1992-08-04 for trackball for computer system monitor. This patent grant is currently assigned to Microspeed Inc.. Invention is credited to Timothy C. Barry.
| United States Patent | D328,458 |
| Barry | August 4, 1992 |
Trackball for computer system monitor
Claims
The ornamental design for a trackball for computer system monitor, as shown and described.
| Inventors: | Barry; Timothy C. (Fremont, CA) |
|---|---|
| Assignee: | Microspeed Inc. (Fremont,
CA) |
| Appl. No.: | 07/507,057 |
| Filed: | April 9, 1990 |
| Current U.S. Class: | D14/417 |
| Field of Search: | ;D14/100,114 ;D21/48 ;D13/158,199 ;340/700,706,707,710-712 ;341/22,23 ;178/18,19 ;273/148B ;74/471XY ;200/5A,5R,6A,6R ;250/221 |
References Cited [Referenced By]
U.S. Patent Documents
| D283818 | May 1986 | Skaggs |
| D288930 | March 1987 | Barbera et al. |
| D291318 | August 1987 | Kim |
| D292600 | November 1987 | Wagner |
| D304447 | November 1989 | Adams et al. |
| D313589 | January 1991 | Martinelli et al. |
Assistant Examiner: Nunn; Freda S.
Attorney, Agent or Firm: Skjerven, Morrill, MacPherson, Franklin & Friel
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.
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