Mathematical learning game

Description

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.

Referenced Cited
U.S. Patent Documents
0463230 November 1891 Hooly
0613432 November 1898 Szenhak
0731175 January 1903 Goodman
1391986 September 1921 Smith
3548524 December 1970 Rohnow
3883968 May 1975 Suzuki
3927613 December 1975 Nantz
4651992 March 24, 1987 Danino et al.
4865324 September 12, 1989 Nesis
4902230 February 20, 1990 Jones
5007840 April 16, 1991 Gaskell
5674076 October 7, 1997 Billings et al.
Patent History
Patent number: D427637
Type: Grant
Filed: Jul 14, 1999
Date of Patent: Jul 4, 2000
Assignee: Knowledge Kids Enterprises, Inc. (Emeryville, CA)
Inventor: Michael C. Wood (Orinda, CA)
Primary Examiner: Martie K. Holtje
Law Firm: Coudert Brothers
Application Number: 0/107,877
Classifications
Current U.S. Class: Movable Indicator Or Changeable Exhibitor (D19/64); Teaching Material (D19/59)
International Classification: 1907;