Magnetic block toy

Amusement devices: toys – Construction toy – Including permanent magnet or suction cup to secure elements

Reexamination Certificate

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Details

C446S129000

Reexamination Certificate

active

07988518

ABSTRACT:
A magnetic block toy is provided that includes a plurality of magnetic blocks coupled to one another by magnets therein. Each of the magnetic blocks includes a body part having two or more end portions and a magnet-mounting part at each end portion of the body part adapted to mount magnets having different polarities on upper and lower surfaces thereof so as to be rotatably supported by a shaft formed on both sides of an outer periphery thereof. When one magnetic block approaches another magnetic block, the magnets are rotated to cause the magnetic blocks to be coupled to each other irrespective of a coupling direction. When the magnetic blocks are coupled to each other, they do not slide against or separate from each other.

REFERENCES:
patent: 2970388 (1961-02-01), Yonkers
patent: 5152711 (1992-10-01), Gross
patent: 6749480 (2004-06-01), Hunts
patent: 6846216 (2005-01-01), Balanchi
patent: 6969294 (2005-11-01), Vicentelli
patent: 7413493 (2008-08-01), Toht et al.
patent: 2004/0116038 (2004-06-01), Hunts
patent: 2006/0240737 (2006-10-01), Yoon
patent: 2007/0287353 (2007-12-01), Vicentelli
patent: 09-140855 (1997-06-01), None
patent: 10-2004-0065186 (2004-07-01), None
International Search Report dated Dec. 21, 2007.
U.S. Office Action issued in U.S. Appl. No. 12/408,132 dated Mar. 24, 2011.

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