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The ornamental design for a portable heater, as shown and described.
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FIG. 1 is a front perspective view of the patio heater of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines are for illustrative purposes only and form no part of the claimed design.
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| May 10 2002 | BOSSLER, MARTIN C | Uniflame Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012960 | /0232 | |
| May 31 2002 | Uniflame Corporation | (assignment on the face of the patent) | / | |||
| Mar 04 2003 | Uniflame Corporation | CPD ASSOCIATES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013852 | /0608 | |
| Apr 15 2004 | CPD ASSOCIATES, INC | Blue Rhino Corporation | MERGER SEE DOCUMENT FOR DETAILS | 015232 | /0966 | |
| Apr 19 2004 | Blue Rhino Corporation | Blue Rhino Global Sourcing, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015259 | /0127 |
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