Emergency relief drain

The ornamental design for an emergency relief drain, as shown and described.

FIG. 1 is perspective view of my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
7721903,	Dec 28 2006	Saudi Arabian Oil Company	Overflow drainage system for floating roof storage tank
8137564,	Feb 11 2000	SPI FILTRATION, LLC	Filtration of hydrocarbon containing liquid
8302797,	Mar 23 2010	Saudi Arabian Oil Company	Storage tank floating roof sump with emergency overflow
8746482,	Mar 23 2010	Saudi Arabian Oil Company	Storage tank floating roof sump with emergency overflow
D501672,	Aug 26 2002		Debris and toxic waste catch basin for installation in a street storm drain
D523537,	Mar 04 2005	Unitherm Food Systems, LLC	Industrial floor drain
D602575,	Nov 19 2007		Shower strainer
D709247,	Apr 26 2013	GAILEN, HANNAH ELSA MARIE	Feeding platter for pets
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ER8303,

Patent	Priority	Assignee	Title
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4910811,	Oct 22 1987	Plastic Oddities, Inc.	Plastic floor drain
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6263518,	Jun 06 2000		Drain strainer
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D421101,	Feb 26 1999	TRIODYNE SAFETY SYSTEMS, L L C	Drain construction
D421102,	Feb 26 1999	TRIODYNE SAFETY SYSTEMS, L L C	Drain construction

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