The ornamental design for grid base plate for lead storage battery, as shown and described.
FIG. 1 is a front perspective view of a grid base plate for lead storage battery showing the claimed design;
FIG. 2 is a front view thereof, the rear view being a mirror image thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is an enlarged view of a portion 7 shown in FIG. 1; and,
FIG. 8 is an enlarged view of a portion 8 shown in FIG. 2.
In the drawings, the dashed broken lines show portions of the grid base plate for the lead storage battery that form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and form no part thereof.
With the views including the perspective view and the enlarged views, the portion to which a protection is sought is specified.