Combined trackball and mouse

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Description

FIG. 1 is a side elevational view of one side of the combined trackball and mouse showing my new design;

FIG. 2 is a end elevational view of one end of the combined trackball and mouse of FIG. 1;

FIG. 3 is a end elevational view of the other end of the combined trackball and mouse of FIG. 1;

FIG. 4 is a side elevational view of the other side of the combined trackball and mouse of FIG. 1;

FIG. 5 is a top plan view of the combined trackball and mouse of FIG. 1;

FIG. 6 is a bottom plan view of the combined trackball and mouse of FIG. 1; and

FIG. 7 is a top plan view like FIG. 5 but with the ball protection cap in an open position.

Referenced Cited
U.S. Patent Documents
D272921 March 6, 1984 Kim
D281776 December 17, 1985 Griffin
D284983 August 5, 1986 Liu
Other references
  • Computer Design, Jun., 1980, p. 21, Trackball.
Patent History
Patent number: D291318
Type: Grant
Filed: Jan 14, 1985
Date of Patent: Aug 11, 1987
Assignee: Wico Distribution Company, L.P. (Niles, IL)
Inventor: Syng N. Kim (Hoffman Estates, IL)
Primary Examiner: Melvin B. Feifer
Law Firm: Emrich & Dithmar
Application Number: 6/690,932
Classifications
Current U.S. Class: D14/114; D21/48; D13/32