The ornamental design for a boosterregulator, as shown and described.
FIG. 1 shows a front elevation view of a booster regulator showing my new design;
FIG. 2 shows a rear elevation view thereof;
FIG. 3 shows a right side elevation view thereof;
FIG. 4 shows a left side elevation view thereof;
FIG. 5 shows a top plan view thereof;
FIG. 6 shows a bottom plan view thereof;
FIG. 7 shows a top, front and right side perspective view thereof;
FIG. 8 shows a bottom, rear and left side perspective view thereof; and,
FIG. 9 shows the booster regulator and a tank with pressure gauges.
The portions of the design shown in broken lines in FIG. 1 and FIG. 9 are for the purpose of illustrating the environment only and form no part of the claimed design.
CORRECTIVE ASSIGNMENT TO CORRECT THE THE REMOVAL OF THE INCORRECTLY RECORDED APPLICATION NUMBERS 14 149802 AND 15 419313 PREVIOUSLY RECORDED AT REEL: 44144 FRAME: 1 ASSIGNOR S HEREBY CONFIRMS THE CHANGE OF NAME