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The ornamental design for a trackball, as shown and described. |
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FIG. 1 is a rear elevational view of a trackball showing our new design.
FIG. 2 is a top plan view thereof,
FIG. 3 is a right side elevational view thereof,
FIG. 4 is a top, front, right side perspective view thereof on an enlarged scale.
FIG. 5 is a left side elevational view thereof.
Koh, Kanae, Bismanovsky, Josef
| Patent | Priority | Assignee | Title |
| D395285, | Mar 01 1996 | MEDIVISION, MEDICAL IMAGING LTD | Control unit |
| D885388, | Jan 21 2019 | Group Intellect Technology Limited | Trackball |
| Patent | Priority | Assignee | Title |
| 4538476, | May 12 1983 | Cursor control assembly | |
| D276247, | Jun 14 1982 | WICO DISTRIBUTION CORP , A DE CORP | Cursor control |
| D301256, | Jan 24 1986 | Hal Laboratory Inc. | Track ball |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 08 1989 | Logitech, Inc. | (assignment on the face of the patent) | / | |||
| Feb 08 1990 | KOH, KANAE | LOGITECH, INC , | ASSIGNMENT OF ASSIGNORS INTEREST | 005251 | /0169 | |
| Feb 08 1990 | BISMANOVSKY, JOSEF | LOGITECH, INC , | ASSIGNMENT OF ASSIGNORS INTEREST | 005251 | /0169 | |
| Oct 10 2001 | LOGITECH, INC | LOGITECH EUROPE, S A | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012391 | /0606 |
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