Patent
   D335660
Priority
Dec 20 1990
Filed
Dec 20 1990
Issued
May 18 1993
Expiry
May 18 2007
Assg.orig
Entity
unknown
86
3
n/a
The ornamental design for a keyboard, as shown and described.

FIG. 1 is a top plan view of a keyboard showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being identical in appearance; and,

FIG. 3 is a reduced top front and right side perspective view thereof, the keyboard being in place within a computer shown in broken lines for illustrative purposes only and forming no part of the claimed design.

Busch, John P.

Patent Priority Assignee Title
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ER2844,
ER3063,
ER4378,
ER7511,
ER9902,
ER9978,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 19 1990BUSCH, JOHN PDELL CORPORATE SERVICES CORPORATION, A CORP OF DEASSIGNMENT OF ASSIGNORS INTEREST 0055640308 pdf
Dec 20 1990Dell USA, L.P.(assignment on the face of the patent)
Feb 04 1991DELL CORPORATE SERVICES CORPORATION, A CORP OF DEDELL USA CORPORATION, A CORP OF DESECURITY INTEREST SEE DOCUMENT FOR DETAILS 0056390522 pdf
May 11 1992Dell USA CorporationDell USA L PASSIGNMENT OF ASSIGNORS INTEREST 0061250055 pdf
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