Educational apparatus for learning math

- LEARNTOOLS INC.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of an educational apparatus for learning math illustrating my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

FIG. 8 is an enlarged front perspective view of a counting element of the educational apparatus for learning math shown separately for clarity of illustration;

FIG. 9 is a rear perspective view thereof;

FIG. 10 is an enlarged front elevation view of a counting element of the educational apparatus for learning math with an exemplary portion of the rod element shown in broken lines for clarity of illustration;

FIG. 11 is a rear elevation view thereof;

FIG. 12 a top plan view thereof with the bottom plan view being substantially identical; and,

FIG. 13 is a left side view thereof with the right side view being substantially identical.

The broken lines illustrating text in FIGS. 1-3, a handle element in FIGS. 1-5 and 7, inner portions of counting elements in FIGS. 8-10 and an exemplary portion of the rod element in FIGS. 10-13 of the educational apparatus for learning math form no part of the portions of the claimed design.

Claims

The ornamental design for an educational apparatus for learning math, as shown and described.

Referenced Cited
U.S. Patent Documents
378866 March 1888 Clark et al.
1099009 June 1914 Bennett
1144487 June 1915 McGinley
1441323 January 1923 Barber
2228554 January 1941 Brown
2646631 July 1953 Lazar
2654164 October 1953 Seidenberg
2655737 October 1953 Dero
D181754 December 1957 Schott
2872742 February 1959 Schott
3076272 February 1963 Schott
3508348 April 1970 Harada
3633287 January 1972 Squires
3688418 September 1972 Wilson
3731401 May 1973 Kojima
D248332 June 27, 1978 Bailey
4295832 October 20, 1981 Karell
4812124 March 14, 1989 Colodner
4884973 December 5, 1989 Pak
4993952 February 19, 1991 Yeh
D674441 January 15, 2013 Rule
20070166673 July 19, 2007 Frieman
20080280273 November 13, 2008 Lee
20120028229 February 2, 2012 Harte
20120251986 October 4, 2012 Silas-Martin
20130052617 February 28, 2013 Harte
20130236864 September 12, 2013 Harte
Patent History
Patent number: D841733
Type: Grant
Filed: Apr 3, 2015
Date of Patent: Feb 26, 2019
Assignee: LEARNTOOLS INC. (Westlake, OH)
Inventor: Raymond J. Herrmann (Westlake, OH)
Primary Examiner: Ian Simmons
Assistant Examiner: Lauren D McVey
Application Number: 29/522,910