FIG. 1 is a top plan view of a duct end portion showing a first embodiment of our design;
FIG. 2 is a front elevational view of the duct end portion of FIG. 1, with the right side elevational view, the left side elevational view and rear elevational view being identical to FIG. 2;
FIG. 3 is an enlarged view of portions of the duct end portion taken at view 3 of FIG. 2;
FIG. 4 is a bottom plan view of FIG. 1;
FIG. 5 is a top front perspective view of FIG. 1, with the top right perspective view, the top left perspective view and the top rear perspective view being identical to FIG. 5;
FIG. 6 is an enlarged view of portions of the duct end portion taken at view 6 of FIG. 5;
FIG. 7 is a bottom front perspective view of FIG. 1, with the bottom right perspective view, the bottom left perspective view and the bottom rear perspective view being identical to FIG. 7;
FIG. 8 is an enlarged view of portions of the duct end portion taken at view 8 of FIG. 7;
FIG. 9 is a top plan view of a duct end portion showing a second embodiment of our design, with the front elevational view, the right side elevational view, the left side elevational view and the rear elevational view of the duct end portion of FIG. 9 being identical to the front elevational view of the duct end portion illustrated in FIG. 2 and the bottom plan view of the duct end portion of FIG. 9 being identical to the bottom plan view of the duct end portion illustrated in FIG. 4;
FIG. 10 is a top front perspective view of the duct end portion of FIG. 9, the top right perspective view, the top left perspective view and the top rear perspective view of the duct end portion of FIG. 9 being identical to FIG. 10;
FIG. 11 is an enlarged view of portions of the duct end portion taken at view 11 of FIG. 10;
FIG. 12 is a bottom front perspective view of the duct end portion of FIG. 9, with the bottom right perspective view, the bottom left perspective view and the lower rear perspective view of the duct end portion of FIG. 9 being identical to FIG. 12; and,
FIG. 13 is an enlarged view of portions of the duct end portion taken at view 13 of FIG. 12.
The broken lines which define the bounds of the claimed design form no part thereof.