The ornamental design for a pipejoint, as shown and described.
FIG. 1 is a front and top perspective view of a pipe joint, showing my new design;
FIG. 2 is a rear and bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is another perspective view thereof, shown in an environmental position of use.
The broken lines are shown for the purpose of illustrating both parts of the pipe joint as well as environmental subject matter. None of the broken lines form part of the claimed design.