The ornamental design for a telescopingwriting implement storagecase, as shown and described.
FIG. 1 is a perspective view of a telescoping writing implement storage case in an expanded state showing the new design;
FIG. 2 is a right side elevational view thereof, a left side elevational view thereof being a mirror image of the right side elevational view;
FIG. 3 is a front elevational view thereof, a rear elevational view thereof being a mirror image of the front elevational view;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a perspective view of a telescoping writing implement storage case in non-expanded state showing the new design.
The broken lines showing writing implements in FIG. 1 and the bottom in FIG. 4 are included for the purpose of illustrating environment and form no part of the claimed design.