Display screen or portion thereof with 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 front view of a first image in a sequence of a first embodiment of the display screen or portion thereof with transitional graphical user interface, shown in color 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 front view of a first image in a sequence of a second embodiment shown in color;

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

FIG. 6 is a third image in the sequence thereof;

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

FIG. 8 is a front view of a first image in a sequence of the third embodiment, shown in grayscale;

FIG. 9 is a second image in the sequence thereof;

FIG. 10 is a third image in the sequence thereof;

FIG. 11 is a front view of a first image in a sequence of the fourth embodiment, shown in grayscale;

FIG. 12 is a second image in the sequence thereof;

FIG. 13 is a third image in the sequence thereof; and,

FIG. 14 is a fourth image in the sequence thereof.

The gradient background of the graphical user interface is claimed subject matter.

The longer length broken line showing of a display screen and the intermediate length broken line showing of a display screen boundary, are included for the purpose of illustrating environmental structure. The dash-dot-dash broken line defines an artificial boundary to the clock element. The remaining broken lines represent elements of the graphical user interface that are excluded from the claim.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-3 , FIGS. 4-7 , FIGS. 8-10 and FIGS. 11-14 . The process or period in which one image transitions to another forms no part of the claimed design.