Title:
Arithmetic instructional apparatus
United States Patent D394878


Inventors:
Perez, Irma Maritza (176 Montgomery St., Bloomfield, NJ, 07003)
Application Number:
29/069485
Publication Date:
06/02/1998
Filing Date:
04/21/1997
Primary Class:
Other Classes:
D19/64
Field of Search:
D21/22, D21/54, D19/35, D19/36, D19/65, D19/59, D19/62, D19/64, 235/74, 235/83, 235/88R, 235/88M, 434/191, 434/198, 434/206, 434/209, 434/102, 434/104, 434/207, 356/423
View Patent Images:
US Patent References:
D354314Dart bowling gameJanuary, 1995SteiningerD21/6
5018976Teaching system for enhancing the learning of sets of factsMay, 1991Kuyath434/207
4790757Instrument for practicing multiplicationDecember, 1988Takahashi434/209
4445865Method of teaching mathematicsMay, 1984Sellon434/207
4424039Mathematics teaching deviceJanuary, 1984Washburn434/189
4399353Color computer wheelAugust, 1983Adkins et al.434/102
4372742Arithmetical teaching aidFebruary, 1983Wentworth434/199
3624928N/ADecember, 1971Felton235/88M
3419973Mathematical teaching wheelJanuary, 1969Manotas et al.235/88M
2908439N/AOctober, 1959Evans235/88M
2567497Educational game deviceSeptember, 1951Sorensen434/198
1662503Appliance for teaching arithmeticMarch, 1928Krieger434/198
0962441N/AJune, 1910Lerner235/88M
0666070N/AJanuary, 1901Schleicher235/88M
0284576N/ASeptember, 1883Rowland235/88M
0199721N/AJanuary, 1878Knight235/88M



Primary Examiner:
Thompson, Martie
Attorney, Agent or Firm:
JAY L CHASKIN (80 WASHINGTON ST NORWALK CT 06854)
Claims:
1. The ornamemtal design for an arithmetic instructional apparatus, as shownand described.

Description:

FIG. 1 is a plan view of an arithmetic instructional device showing my new design;

FIG. 2 is a side view of the arithmetic instructional device of FIG. 1; and,

FIG. 3 is a bottom view of the arithmetic instructional device of FIG. 1.

The FIG. 1 view has been shaded to indicate color.