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公开(公告)号：US20220364358A1
公开(公告)日：2022-11-17
申请号：US17549443
申请日：2021-12-13
申请人： Paul SIMPSON
发明人： Paul SIMPSON
摘要： The present invention relates to the reuse of otherwise discarded plastic to be used as building material and is resistant to extreme weather conditions. A building block comprises a multiple sided hollow box, wherein the sides of the box are tapered, with at least one keyway respectively slotted on at least two faces of the hollow box and an interlocking key which has a corresponding shape with the keyway to tightly interlock in the keyway.
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