Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: D21/500
Name: Games, toys, and sports goods > Toy > Representation or scale model > Construction type (e.g., building block) > Rectangular (e.g., rectilinear form)
Description: Design with the form of a rectangle.

Sub-classes under this class:

Class Number Class Name Patents
D21/501 Including open area 74

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
D701923 Building block from a toy building set Apr. 1, 2014
D683409 Tray for modular construction toys May. 28, 2013
8382548 Toy building blocks Feb. 26, 2013
D667895 Building block element of a toy building set Sep. 25, 2012
D667507 Set of building blocks Sep. 18, 2012
D657828 String of blocks Apr. 17, 2012
D652087 Toy construction set element Jan. 10, 2012
D641804 Toy block Jul. 19, 2011
D621883 Connector for child balancing play game assembly Aug. 17, 2010
D617396 Element of a construction set Jun. 8, 2010
D611551 Toy building element Mar. 9, 2010
D608400 Toy element for a building set Jan. 19, 2010
D561847 Construction toy component Feb. 12, 2008
D561846 Construction toy component Feb. 12, 2008
D517617 Assembly block Mar. 21, 2006
D517615 Assembly block Mar. 21, 2006
D516636 Assembly block Mar. 7, 2006
D516635 Assembly block Mar. 7, 2006
D515634 Building element Feb. 21, 2006
D499151 Puzzle Nov. 30, 2004
D490484 Half cube May. 25, 2004
D467288 Toy building element Dec. 17, 2002
D465816 Toy building element Nov. 19, 2002
D465247 Toy building element Nov. 5, 2002
D463866 Building block with aesthetic stone facade Oct. 1, 2002
D456463 Toy building element Apr. 30, 2002
D454721 Set of modular parallelepipeds for displaying plants Mar. 26, 2002
D445148 Toy construction block Jul. 17, 2001
D443659 Building block with aesthetic wood facade Jun. 12, 2001
D430231 Toy building element Aug. 29, 2000
D423607 Toy-block with side rail extension Apr. 25, 2000
D416057 Toy-block with multi-rail extension Nov. 2, 1999
D414530 Toy-block with rail extension Sep. 28, 1999
D413942 Toy block with rail extensions and protrusion Sep. 14, 1999
D412946 Toy building element Aug. 17, 1999
D411864 Toy building element Jul. 6, 1999
D411591 Toy block Jun. 29, 1999
D396498 Reversible nesting blocks Jul. 28, 1998
D394469 Toy building element May. 19, 1998
D394473 Toy building element May. 19, 1998
D394287 Three dimensional ornament for toys May. 12, 1998
D389201 Interlocking plastic building block Jan. 13, 1998
D378837 Toy building element Apr. 15, 1997
D377887 Building block drink container Feb. 11, 1997
D377671 Rectangular brick for a toy construction set Jan. 28, 1997
D377532 Building block Jan. 21, 1997
D377377 Toy construction block with symmetrically arranged T-slots Jan. 14, 1997
D371398 Toy construction block with side orifices Jul. 2, 1996
D371281 Building block drink container Jul. 2, 1996
D370700 Toy building brick Jun. 11, 1996

1 2 3

  Recently Added Patents
Identifying conceptually related terms in search query results
Touch panel structure and manufacturing method thereof
Image forming apparatus with static elimination
Antimony and germanium complexes useful for CVD/ALD of metal thin films
Controller for machine tool and five-axis simultaneous control machine tool controlled thereby
Piezoelectric speaker and method of manufacturing the same
  Randomly Featured Patents
Aircraft glide slope display system and method
Multimedia data transferring method
Phosphate prodrugs of a farnesyl dibenzodiazepinone, processes for their production and their use as pharmaceuticals
Light sensing apparatus and method for luminaire calibration
Pyrazole derivatives
Track bushing and method and apparatus for producing the same
Thermal retention-device
Polyethylene-protein conjugates
Exhaust system for an internal combustion engine
Method and system for second bend plane detection of ear canal surfaces