Patent
   D427637
Priority
Jun 15 1998
Filed
Jul 14 1999
Issued
Jul 04 2000
Expiry
Jul 04 2014
Assg.orig
Entity
unknown
2
12
n/a
The ornamental design for a mathematical learning game, as shown and described.

FIG. 1 is a front perspective view of a first embodiment of a mathematical learning game showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a side thereof with the view rotated ninety degree relative to FIG. 3;

FIG. 5 is a rear view thereof with the view rotated ninety degree relative to FIG. 4;

FIG. 6 is a side view thereof with the view rotated ninety degrees relative to FIG. 5;

FIG. 7 is a left end view thereof; and,

FIG. 8 is a right end view thereof.

FIG. 9 is a front perspective view of a second embodiment of a mathematical learning game similar to the first embodiment except with patterned numbers and indicia;

FIG. 10 is a rear perspective view thereof;

FIG. 11 is a front view thereof;

FIG. 12 is a side view thereof with the view rotated ninety degree relative to FIG. 11;

FIG. 13 is a rear view thereof;

FIG. 14 is a side view thereof with the view rotated by ninety degrees relative to FIG. 13;

FIG. 15 is a left end view thereof; and,

FIG. 16 is a right end view thereof.

The numerals and other indicia depicted by means of broken lines in FIGS. 1, 3, 9 and 11 have been shown for illustrative purposes only and form no part of the claimed design.

Wood, Michael C.

Patent Priority Assignee Title
11355028, Feb 08 2020 ACOUSTIC WALLS, LLC Systems and methods for aiding music theory comprehension
D904514, Jan 14 2019 ACOUSTIC WALLS, LLC Rotary device
Patent Priority Assignee Title
1391986,
3548524,
3883968,
3927613,
463230,
4651992, Nov 30 1984 Cybertronics Ltd. Puzzle-type game
4865324, Feb 04 1988 HUNTAR COMPANY, INC Magnetic wheel puzzle
4902230, Oct 19 1987 Rotational educational apparatus
5007840, Dec 14 1988 Operations processor
5674076, Feb 14 1995 SERENITY PRODUCTIONS, INC Hand-held sound generating device
613432,
731175,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 14 1999Knowledge Kids Enterprises, Inc.(assignment on the face of the patent)
Aug 27 1999WOOD, MICHAEL C KNOWLEDGE KIDS ENTERPRISES, INC , A CORPORATION OF CALIFORNIAASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0102350956 pdf
Aug 23 2000KNOWLEDGE KIDS ENTERPRISES, INC FOOTHILL CAPITAL CORPORATIONSECURITY AGREEMENT0113690894 pdf
Feb 01 2001KNOWLEDGE KIDS ENTERPRISES, INC LEAPFROG ENTERPRISES, INC CHANGE OF ADDRESS0126410845 pdf
Jul 10 2001LEAPFROG ENTERPRISES, INC F K A KNOWLEDGE KIDS ENTERPRISES, INC FOOTHILL CAPITAL CORPORATIONSECURITY AGREEMENT0129160246 pdf
Dec 18 2001WOOD, MICHAEL C KNOWLEDGE KIDS ENTERPRISES, INC CORRECTIVE ASSIGNMENT TO CORRECT THE STATE OF OF INCORPORATION ON THE ASSIGNMENT DOCUMENT, PREVIOUSLY RECORDED ON REEL 010235 FRAME 09560125690426 pdf
Nov 27 2002LEAPFROG ENTERPRISES, INC F K A KNOWLEDGE KIDS ENTERPRISES, INC FOOTHILL CAPITAL CORPORATIONRELEASE AGREEMENT0137120602 pdf
Aug 28 2008LEAPFROG ENTERPRISES, INC BANK OF AMERICA, N A SECURITY AGREEMENT0215110441 pdf
Aug 28 2008LFC VENTURES, LLCBANK OF AMERICA, N A SECURITY AGREEMENT0215110441 pdf
Aug 13 2009LEAPFROG ENTERPRISES, INC BANK OF AMERICA, N A AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT0233790220 pdf
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