Computer trackball

- Microsoft
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Description

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

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a right side elevational view thereof in the tilted orientation;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a front elevational view thereof.

The broken line drawing of an electrical cord in FIGS. 2 and 4 is for illustrative purposes only and forms no part of the claimed design.

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Patent History
Patent number: D342241
Type: Grant
Filed: Mar 8, 1991
Date of Patent: Dec 14, 1993
Assignee: Microsoft Corporation (Redmond, WA)
Inventors: Stuart Ashmun (Seattle, WA), Charlie Garthwaite (Kirkland, WA), Bridget Cameron (Seattle, WA), Allan H. Stephan (Seattle, WA), Michael D. Nelson (Seattle, WA), Mike M. Paull (Seattle, WA), Paul Bradley (Woodside, CA), James R. Yurchenco (Palo Alto, CA), Elinor J. Fulton (Kensington, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: M. H. Tung
Law Firm: Seed and Berry
Application Number: 7/665,840
Classifications
Current U.S. Class: D14/114