Block puzzle
United States Patent D596242

Schwisow, Wayne Arthur (3123 Maplewood Cir., NE., Tacoma, WA, US)
Lyons, Dawne (1196 Saint Challes Ct., Los Altos, CA, US)
Application Number:
Publication Date:
Filing Date:
Primary Class:
Other Classes:
International Classes:
(IPC1-7): 2101
Field of Search:
446/75, 446/117, 273/160, D21/506-511, 446/69, D21/494, D21/471, D21/484, 273/157R, 446/71, 446/85, D21/478-480, 446/124, 273/153R, 273/156
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US Patent References:
20060033272Cubic assembly puzzle and support structureFebruary, 2006Chen273/156
20050067780Interchangeable surface system for toy blocksMarch, 2005Sanyal et al.273/156
D385311PuzzleOctober, 1997NegahbanD21/479
5354224Block toy including a plurality of blocks that can be variously assembled to create different graphical images and including apertured blocks having engagement surfaces which extend from edges of the apertures into the blocksOctober, 1994Ishiyama446/117
D298149Combined puzzle and holder thereforOctober, 1988Hermans et al.D21/480
D238698N/AFebruary, 1976CookD21/480
2754620Window simulating toy constructional blockJuly, 1956Gilbert et al.446/85
D151020N/ASeptember, 1948Van DykD9/628
2278327Toy blockMarch, 1942Magnus et al.446/124
D128374N/AJuly, 1941HermanD21/480
D029649N/ANovember, 1898SteinD21/480

Primary Examiner:
Tuttle, Catherine
Attorney, Agent or Firm:
Morgan, Lewis & Bockius LLP

1. The ornamental design for the block puzzle, as shown and described.


FIG. 1 is an assembled front view of the block puzzle showing my new design;

FIG. 2 is an exploded front view thereof;

FIG. 3 is an assembled front perspective view thereof;

FIG. 4 is an exploded front perspective view thereof;

FIG. 5 is a front view of a second embodiment of the block puzzle, shown with surface features in dotted lines;

FIG. 6 is a back view of the second embodiment, shown with surface features in dotted lines;

FIG. 7 is a right side view of the first and second embodiments; and,

FIG. 8 is a left side view of the first and second embodiments.

The dotted lines are included for the purpose of illustrating surface features that form no part of the claimed design.