Display screen or portion thereof with a transitional graphical user interface

The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a view of a display screen of portion thereof with a transitional graphical user interface showing a first image in a sequence of a first embodiment according to the claimed design;

FIG. 2 is a second image in the sequence thereof;

FIG. 3 is a third image in the sequence thereof;

FIG. 4 is a fourth image in the sequence thereof;

FIG. 5 is a fifth image in the sequence thereof;

FIG. 6 is a view of a display screen of portion thereof with a transitional graphical user interface showing a first image in a sequence of a second embodiment according to claimed design;

FIG. 7 is a second image in the sequence thereof;

FIG. 8 is a third image in the sequence thereof;

FIG. 9 is a fourth image in the sequence thereof; and,

FIG. 10 is a fifth image in the sequence thereof.

The appearance of the transition is sequential from FIG. 1 through FIG. 5 in the first embodiment, and from FIG. 6 through FIG. 10 in the second embodiment.

The process or period in which an image transitions to another image forms no part of the claimed design.

The shaded regions, and their respective density of shading, portray contrast of one area of the claimed design from another, and are part of the claimed design. The orientation of the shaded regions on the screen as well as mirror-images thereof are within the scope of the claimed design.

The longer-incremented broken-lines showing a portion of an electronic device and the intermediate-length broken-lines showing of a display screen boundary, as well as the still shorter broken-lines showing unclaimed features, are included for the purpose of illustrating environmental structure and form no part of the claimed design. The boundaries shown for the electronic device and the display screen provide a context of the claimed design as being on an article of manufacture, and are not intended to be limiting of a scale of the claimed design relative to the display screen.