The ornamental design for roadway expansion joint sealing retainer extrusion, substantially as shown and described.
FIG. 1 is a top perspective view of a roadway expansion joint sealing
retainer extrusion of my design;
FIGS. 2 and 3 are, respectively, top and bottom views thereof on an
enlarged scale, the extrusion being broken away for convenience of
illustration;
FIG. 4 is an end view thereof on an enlarged scale;
FIGS. 5 and 6 are, respectively, left and right side views thereof on an
enlarged scale, the extrusion being broken away for convenience of
illustration.