Toy building block

The ornamental design for a toy building block, as shown.

FIG. 1 is a perspective view showing the front, left side of the toy building block showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof; and,

FIG. 4 is a front elevational view thereof.

Patent	Priority	Assignee	Title
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D480425,	May 21 2001		Polyhedral model
D575313,	Jan 17 2007	3D Systems, Inc	Build platform
D717379,	Feb 19 2014		Building block
D760324,	Aug 20 2014	UNIVERSALSOFT CO., LTD.	Toy block
D788858,	Nov 30 2015	Playworld Systems, Inc.	Climbable integral block formation
D792521,	Nov 30 2015	Playworld Systems, Inc.	Climbable block
D792522,	Aug 08 2016		Toy building block
D792523,	Aug 19 2016		Toy building block
D795969,	Dec 08 2015		Inflatable building block cube
D798966,	Aug 08 2016		Toy building block
D803953,	Dec 08 2015		Inflatable building block rectangle
D870822,	Aug 17 2017	MERGE LABS, INC	Augmented reality toy
D896322,	Jun 01 2020		Gear cube
D901598,	Jul 02 2019		Inflatable building block

Patent	Priority	Assignee	Title
3005131,
3225460,
3481068,
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D301260,	Nov 27 1985		Combined storage container and toy building block

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