Patent
   D891531
Priority
Jun 15 2018
Filed
Dec 15 2018
Issued
Jul 28 2020
Expiry
Jul 28 2035
Assg.orig
Entity
unknown
7
16
n/a
The ornamental design for a building block, as shown and described.

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.

Xie, Lei, Zhang, Xiang

Patent Priority Assignee Title
D949978, Sep 05 2019 Iringo Co., Ltd.; IRINGO CO , LTD Toy block
D959564, Jul 03 2020 Brick for construction toys
D959565, Jul 03 2020 Brick for construction toys
D959566, Jul 03 2020 Brick for construction toys
D959567, Jul 03 2020 Brick for construction toys
D959568, Jul 03 2020 Brick for construction toys
ER6834,
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 12 2018ZHANG, XIANGSHANGHAI PUTAO TECHNOLOGY CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0477890030 pdf
Dec 12 2018XIE, LEISHANGHAI PUTAO TECHNOLOGY CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0477890030 pdf
Dec 15 2018Shanghai Putao Technology Co., Ltd.(assignment on the face of the patent)
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