Geometric construction system

Amusement devices: toys – Construction toy – Including connectable panels or strips

Reexamination Certificate

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Details

C446S115000, C446S116000, C446S104000, C052S081100, C052S080200

Reexamination Certificate

active

07438623

ABSTRACT:
A geometric construction system includes: a plurality of flat panels; and a plurality of connecting units provided on side edges of the flat panels. Each connecting unit includes first and second engaging parts. The first engaging part is formed with a protrusion, and the second engaging part is formed with a recess such that the protrusion of the first engaging part on one of the flat panels is releasably engageable with the recess of the second engaging part on another of the flat panels. The second engaging part is further formed with resilient claws that project from a periphery of the recess. The claws of the second engaging part on one of the flat panels clamp resiliently the protusion of the first engaging part on another of the flat panels when the protrusion is moved into the recess of the second engaging part.

REFERENCES:
patent: 4055019 (1977-10-01), Harvey
patent: 4731041 (1988-03-01), Ziegler
patent: 4792319 (1988-12-01), Svagerko
patent: 5472365 (1995-12-01), Engel
patent: 5501626 (1996-03-01), Harvey
patent: D409668 (1999-05-01), Madner
patent: 6142848 (2000-11-01), Madner et al.
patent: 6186855 (2001-02-01), Bauer et al.
patent: 6565406 (2003-05-01), Huang
patent: 2001/0010992 (2001-08-01), Brazier et al.
patent: 2002/0098774 (2002-07-01), Huang

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