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The ornamemtal design for a computer upper expansion unit, as shown. |
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.
Wang, James P., Silverstein, Steven A.
Patent | Priority | Assignee | Title |
D337998, | Mar 05 1991 | TEAC Corporation | Disc drive |
D343612, | Oct 01 1991 | International Business Machines Corp | Computer system unit |
D350338, | Oct 14 1992 | Apple Computer, Inc | Docking station for receiving a portable computer |
D350340, | Mar 05 1991 | TEAC Corporation | Disc drive |
Patent | Priority | Assignee | Title |
3525086, | |||
3725883, | |||
4642715, | Nov 01 1984 | Miltope Corporation | Environmental conditioning and safety system for disk-type mass memories |
D290694, | Aug 27 1984 | Koyo Electronics Industries Co., Ltd. | Programmable controller |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Oct 10 1989 | SILVERSTEIN, STEVEN A | INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP OF NY | ASSIGNMENT OF ASSIGNORS INTEREST | 005160 | /0175 | |
Oct 10 1989 | WANG, JAMES P | INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP OF NY | ASSIGNMENT OF ASSIGNORS INTEREST | 005160 | /0175 | |
Oct 11 1989 | International Business Machines Corporation | (assignment on the face of the patent) | / | |||
May 20 2005 | International Business Machines Corporation | LENOVO SINGAPORE PTE LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016891 | /0507 |
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