Self-supporting building cards

Details Self-supporting building cards Self-supporting building cards

2006-02-14

2006-02-14

Ackun, Jr., Jacob K. (Department: 3723)

Amusement devices: toys

Construction toy

Including connectable panels or strips

C446S128000

Reexamination Certificate

active

06997771

ABSTRACT:
A set of elements used for building easily disassembled structures includes a plurality of building cards. At least one surface of each card is provided with protrusions extending normally therefrom. When an edge of a first card is in abutting contact with one or more protrusions of a second card, the one or more protrusions prevent the first card from sliding beyond a point or locus defined by the one or more protrusions thereby permitting the first card to be stably leaned against a third card, and so on, to create supported structures constructed from a plurality of the building cards.

REFERENCES:
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patent: 4685892 (1987-08-01), Gould et al.
patent: 5197596 (1993-03-01), Garganese
patent: 5788233 (1998-08-01), Wolfe
patent: 6153311 (2000-11-01), Springer et al.
patent: 6643961 (2003-11-01), Hluchan
patent: 2002/0078653 (2002-06-01), Jean
patent: 2002/0168916 (2002-11-01), Axelrad
patent: 2252056 (1992-07-01), None

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