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 display screen or portion thereof with transitional graphical user interface showing a first image of a first embodiment of our new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a third image thereof;

FIG. 4 is a front view of a fourth image thereof;

FIG. 5 is a front view of a fifth image thereof;

FIG. 6 is a front view of a sixth image thereof;

FIG. 7 is a front view of a seventh image thereof;

FIG. 8 is a front view of an eighth image thereof;

FIG. 9 is a front view of a ninth image thereof;

FIG. 10 is a front view of a tenth image thereof;

FIG. 11 is a front view of an eleventh image thereof;

FIG. 12 is a front view of a twelfth image thereof;

FIG. 13 is a front view of a thirteenth image thereof;

FIG. 14 is a front view of a fourteenth image thereof;

FIG. 15 is a front view of a display screen or portion thereof with transitional graphical user interface showing a first image of a second embodiment of our new design;

FIG. 16 is a front view of a second image thereof;

FIG. 17 is a front view of a third image thereof;

FIG. 18 is a front view of a fourth image thereof;

FIG. 19 is a front view of a fifth image thereof;

FIG. 20 is a front view of a sixth image thereof;

FIG. 21 is a front view of a seventh image thereof;

FIG. 22 is a front view of an eighth image thereof;

FIG. 23 is a front view of a ninth image thereof;

FIG. 24 is a front view of a tenth image thereof;

FIG. 25 is a front view of an eleventh image thereof;

FIG. 26 is a front view of a twelfth image thereof;

FIG. 27 is a front view of a thirteenth image thereof; and,

FIG. 28 is a front view of a fourteenth image thereof.

The outer, evenly spaced broken lines illustrate a mobile device, which is the environment of the design, and form no part of the claimed design. The remaining broken lines illustrate portions of the display screen, and portions of the graphical user interface, and form no part of the claimed design.

The appearance of the transitional images sequentially transitions between the views of FIGS. 1 - 14 in the first embodiment and between the views of FIGS. 15 - 28 in the second embodiment. The process or period in which an image transitions to another forms no part of the claimed design.