The ornamental design for a screendoorpushbar, as shown and described.
FIG. 1 is a top right rear perspective view of a screen door push bar showing our new design, said view being broken apart for ease of illustration to show indeterminate length;
FIG. 2 is a top left front perspective view thereof;
FIG. 3 is a front side elevational view thereof;
FIG. 4 is a bottom plan view thereof, the top plan view being a mirror image;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left elevational view thereof, the right elevational view being a mirror image;
FIG. 7 is a sectional view thereof taken along line 7—7 in FIG. 4; and,
FIG. 8 is a top front right perspective view shown in use condition.
The broken line showing of the recreational vehicle screen door having a diamond pattern in FIG. 8 is included for the purpose of illustrating environmental use only and forms no part of the claimed design.