Patent
   D338449
Priority
Jul 25 1991
Filed
Jul 25 1991
Issued
Aug 17 1993
Expiry
Aug 17 2007
Assg.orig
Entity
unknown
68
4
n/a
The ornamental design for an exterior surface of a heat sink, as shown and described.

FIG. 1 is a perspective view of an exterior surface of a heat sink embodying my new design;

FIG. 2 is an end view thereof, the opposite end being a mirror image of this view;

FIG. 3 is a side elevation view thereof which is identical from both sides;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken line showing in FIGS. 1, 2 and 5 is included for the purpose of illustrating environmental elements only and forms no part of the claimed design.

Sahyoun, Youssef Y.

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