
Claims (1)
Claim 1 (Independent)
The ornamental design for a sink drain extension, as shown.
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is a top front perspective view of the sink drain extension;
is bottom front perspective view of the sink drain extension;
is a front view of the sink drain extension;
is a rear view of the sink drain extension;
is a first side view of the sink drain extension;
is a second side view of the sink drain extension;
is a top view of the sink drain extension; and,
is a bottom view of the sink drain extension.
Figures (8)
Citations
This patent cites (21)
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