Wedge-lock building blocks

Amusement devices: toys – Construction toy – Interfitting elements

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C446S125000, C052S592600

Reexamination Certificate

active

07108577

ABSTRACT:
A building block that is releasably attachable to another block of compatible design by wedging the tongue of one block into the groove of another block, without the need for any intermediate adhesives, bonding materials or any other means of holding the blocks together. The block includes a body, an outwardly-extending tapered tongue, and two inner surfaces that form a tapered groove therebetween. The tongue and groove have substantially the same taper. The top of the tongue is wider than the bottom of the groove. The base of the tongue is wider than the opening of the groove. A tongue and groove joint is also disclosed as well as methods for forming a tongue and groove joint. A base which includes a plurality of spaced-apart tongues and grooves is provided for use in supporting a plurality of building blocks thereon.

REFERENCES:
patent: D30707 (1899-05-01), Paquette
patent: 764459 (1904-07-01), Hackman
patent: 1171191 (1916-02-01), Gronert et al.
patent: 1337171 (1920-04-01), Ward
patent: 1779805 (1930-10-01), Dunwoodie
patent: 2160158 (1939-05-01), Lind
patent: 2258066 (1941-10-01), Oyen
patent: 2374284 (1945-04-01), Hall
patent: 2655032 (1953-10-01), Zagray
patent: 2814159 (1957-11-01), Green
patent: 2902733 (1959-09-01), Justus
patent: 2932745 (1960-04-01), Alberti et al.
patent: 3138898 (1964-06-01), Carter
patent: 3381428 (1968-05-01), Sillman
patent: 3439941 (1969-04-01), Nicol
patent: 3527004 (1970-09-01), Sorensen
patent: 3529389 (1970-09-01), Wilkins
patent: 3534518 (1970-10-01), Zagray
patent: 4060952 (1977-12-01), Hernandez
patent: 4219225 (1980-08-01), Sigmund
patent: 4272940 (1981-06-01), Nicolls
patent: 4299069 (1981-11-01), Neumann
patent: 4314431 (1982-02-01), Rabassa
patent: 4570799 (1986-02-01), Mednis
patent: 4907383 (1990-03-01), Winter, IV
patent: 4990116 (1991-02-01), Chen
patent: 5213437 (1993-05-01), Sommer
patent: 5226276 (1993-07-01), Cahill
patent: 5647185 (1997-07-01), Forlini
patent: 5901520 (1999-05-01), Abdul-Baki
patent: 5966896 (1999-10-01), Tylman
patent: 6071041 (2000-06-01), Knight
patent: 6086444 (2000-07-01), Glickman
patent: 6122881 (2000-09-01), Aubertot
patent: 6312305 (2001-11-01), McCormick et al.
patent: 6450543 (2002-09-01), Fukano et al.
patent: 6457911 (2002-10-01), Scales et al.
patent: 6584740 (2003-07-01), Record
patent: 6641452 (2003-11-01), Racine
patent: 2002/0021042 (2002-02-01), Damron

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Wedge-lock building blocks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wedge-lock building blocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wedge-lock building blocks will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3618207

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.