Computer upper expansion unit

- IBM
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Description

FIG. 1 is a front elevational view of a computer upper expansion unit 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 left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a top, front, right side perspective view thereof.

Referenced Cited
U.S. Patent Documents
D290694 July 7, 1987 Shimizu et al.
3525086 August 1970 Lichowsky
3725883 April 1973 Bennett et al.
4642715 February 10, 1987 Ende
Patent History
Patent number: D319049
Type: Grant
Filed: Oct 11, 1989
Date of Patent: Aug 13, 1991
Assignee: International Business Machines Corporation (Armonk, NY)
Inventors: Steven A. Silverstein (Lexington, KY), James P. Wang (Lexington, KY)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Freda S. Nunn
Attorney: Mark P. Kahler
Application Number: 7/419,859
Classifications
Current U.S. Class: D14/109