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The ornamental design for a portable cooler, as described and shown.
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FIG. 1 is a front perspective view of a portable cooler illustrating my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a top plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 12 2004 | BEN-MOSHE, RAMI | Sun-Mate Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015174 | /0116 | |
| Apr 01 2004 | Sun-Mate Corporation | (assignment on the face of the patent) | / | |||
| Sep 01 2011 | Sun-Mate Corporation | Koolatron Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027170 | /0681 |
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