Heat sink for LED light bulb

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Description

FIG. 1 is a perspective view of a heat sink for an LED light bulb showing our design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

Claims

The ornamental design of a heat sink for LED light bulb, as shown and described.

Patent History
Patent number: D677227
Type: Grant
Filed: Mar 24, 2011
Date of Patent: Mar 5, 2013
Assignee: GrafTech International Holdings Inc. (Parma, OH)
Inventor: James T. Petroski (Parma, OH)
Primary Examiner: Selina Sikder
Application Number: 29/388,101
Classifications
Current U.S. Class: Heat Sink (D13/179)