The ornamental design for a portable fireplace, substantially as shown and described.
FIG. 1 is a front elevational view of a portable fireplace in accordance with the present design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a front perspective view thereof;
FIG. 6 is a front perspective view of the design of FIG. 1, shown in a fully folded position; and,
FIG. 7 is a front perspective view of the design of FIG. 1, shown in an unfolded position.
The left side elevational view is not shown because it is symmetric to the right side elevational view.
The broken line showing of the vent opening and the interlocking screws and keyhole mounting slots depicts portions of the portable fire place that farm no part of the claimed design.
In a preferred embodiment, the nature of this product is as a portable fire place, which is primarily useful as a receptacle for a fire.