Patent Publication Number: US-D811429-S

Title: Display screen or portion thereof with transitional graphical user interface

Description:
FIG. 1  is a first image in a sequence for a display screen or portion thereof with transitional graphical user interface showing our new design; 
         FIG. 2  is a second image thereof; 
         FIG. 3  is a third image thereof; 
         FIG. 4  is a fourth image thereof; 
         FIG. 5  is a fifth image thereof; and, 
         FIG. 6  is a sixth image thereof. 
       The appearance of the animated user interface sequentially transitions between the images shown in  FIGS. 1-6 . The process or period in which one image transitions to another forms no part of the claimed design. The broken lines show a display screen or portion thereof and the portions of the graphical user interface which form no part of the claimed design.