Patent
   D252635
Priority
Apr 27 1977
Filed
Apr 27 1977
Issued
Aug 14 1979
Expiry
Aug 14 1993
Assg.orig
Entity
unknown
21
5
n/a
The ornamental design for a portable learning unit, as shown and described.

FIG. 1 is a perspective view of the preferred embodiment of a portable learning unit showing a portion of the front, left side and top thereof;

FIG. 2 is an enlarged right side view thereof;

FIG. 3 is a rearward perspective view showing a portion of the rear, right side and top thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a frontal view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a frontal view of a portable learning unit in accordance with a modification of the present design;

FIG. 8 is a perspective view of the modification illustrated in FIG. 7 showing a portion of the front, left side and top thereof; and,

FIG. 9 is a perspective view as in FIGS. 1 and 8 showing the portable learning unit in a closed position.

The bottom of both embodiments is plain and unornamented.

The right side, rear and rearward perspective views of the embodiment shown in FIGS. 7 and 8, are the same as shown in FIGS. 2, 6 and 3, respectively.

The top of the embodiment shown in FIGS. 7 and 8 is the same as that shown in FIG. 4, except that the keyboard and telephone set shown in FIG. 4 are not present in a top view of embodiment shown in FIGS. 7 and 8.

The left side of both embodiments is a mirror image of FIG. 2.

Richgels, Eugene

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 27 1977Control Data Corporation(assignment on the face of the patent)
Sep 20 1989CONTROL DATA CORPORATONTEG AQUISITION CORPORATION, A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST 0051610496 pdf
Oct 19 1989TEG ACQUISITION CORP ROACH ORGANIZATION, INC , THECHANGE OF NAME SEE DOCUMENT FOR DETAILS EFFECTIVE DATE: 10-20-89, DELAWARE0052500325 pdf
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