Preschool teaching aid

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Description

FIG. 1 is an isometric view of a preschool teaching aid showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is an enlarged right side elevational view thereof;

FIG. 6 is an enlarged left side elevational view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depicting the key chains are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D34820 July 1901 Christman
D170563 October 1953 Zipkin
2672344 March 1954 Wakefield
3724101 April 1973 Slezak
3788644 January 1974 Evans
4107855 August 22, 1978 Rapchen
4188734 February 19, 1980 Rich
4378214 March 29, 1983 Scherer
4637798 January 20, 1987 Maiden-Nesset
4846692 July 11, 1989 Delcambre
4927158 May 22, 1990 Lierman
5145377 September 8, 1992 Tarvin et al.
5167503 December 1, 1992 Jordan
5167505 December 1, 1992 Walsh
5362061 November 8, 1994 Napolitano
Foreign Patent Documents
73742 June 1958 FRX
719952 November 1978 DEX
3476 May 1919 NLX
1438483 June 1976 GBX
Other references
  • Ruth Wall, Classroom Keys, A Curriculum that brings Structure: Order: Positive Learning Experiences. P. Ruth Wall, Kingdom Keys, A Complete Christian Curriculum Guide to Order and Instruction for Educational Learning Centers.
Patent History
Patent number: D373792
Type: Grant
Filed: May 30, 1995
Date of Patent: Sep 17, 1996
Inventor: Patsy R. Wall (Terrell, TX)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Pamela Burgess
Attorney: Richard C. Litman
Application Number: 0/39,489
Classifications
Current U.S. Class: Movable Indicator Or Changeable Exhibitor (D19/64); D8/372