Building block

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Description

FIG. 1 is a front and side perspective view of a building block showing our new design;

FIG. 2 is a bottom and side perspective view of the first embodiment thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Claims

The ornamental design for a building block, as shown and described.

Referenced Cited
U.S. Patent Documents
D284393 June 24, 1986 Kassai
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Patent History
Patent number: D891531
Type: Grant
Filed: Dec 15, 2018
Date of Patent: Jul 28, 2020
Assignee: SHANGHAI PUTAO TECHNOLOGY CO., LTD. (Shanghai)
Inventors: Xiang Zhang (Shanghai), Lei Xie (Shanghai)
Primary Examiner: Cynthia M. Chin
Application Number: 29/673,567
Classifications
Current U.S. Class: Circular (D21/488)