Optical trackball
Sheehan , et al. June 8, 1
U.S. patent number D410,638 [Application Number D/087,783] was granted by the patent office on 1999-06-08 for optical trackball. This patent grant is currently assigned to Logitech Incorporated. Invention is credited to Cathal Loughnane, Peter Sheehan.
| United States Patent | D410,638 |
| Sheehan , et al. | June 8, 1999 |
Optical trackball
Claims
The ornamental design for an optical trackball, as shown and described.
| Inventors: | Sheehan; Peter (Bray, IE), Loughnane; Cathal (Dublin, IE) |
|---|---|
| Assignee: | Logitech Incorporated (Fremont,
CA) |
| Appl. No.: | D/087,783 |
| Filed: | May 8, 1998 |
| Current U.S. Class: | D14/409 |
| Current International Class: | 1402 |
| Field of Search: | ;D14/114,100,117.1-117.9 ;D13/158 ;D21/385,333 ;200/5R,5A,6R,6A ;273/148B ;345/156-67 ;463/36-9 |
References Cited [Referenced By]
U.S. Patent Documents
| D354746 | January 1995 | Colani et al. |
| D386484 | November 1997 | Jensen et al. |
| D390210 | February 1998 | Bickford et al. |
| D396034 | July 1998 | Whiteing |
| 5576733 | November 1996 | Lo |
Attorney, Agent or Firm: Townsend and Townsend and Crew LLP
Description
FIG. 1 is a perspective view of an optical trackball showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front plan view thereof;
FIG. 4 is a left side plan view thereof;
FIG. 5 is a right side plan view thereof;
FIG. 6 is a rear plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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