Mathematics educational aid

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Description

The sole FIGURE is a top plan view of a mathematics educational aid, showing my new design.

The surface is flat and of no substantial thickness.

The broken lines immediately adjacent to the claim depict the bounds of the claimed design and form no part of the claimed design, while all other broken lines are directed to environment. The broken lines form no part of the claimed design.

Claims

The ornamental design for a mathematics educational aid, substantially as shown and described.

Referenced Cited
U.S. Patent Documents
2764822 October 1956 Gurevitch
2866278 December 1958 Snarr
3002295 October 1961 Armstrong
3083475 April 1963 LePoudre
3461573 August 1969 Stibal
3672072 June 1972 Akiyama
D247119 January 31, 1978 Nilsson
5338203 August 16, 1994 Rheams
D621878 August 17, 2010 Weiss
D721400 January 20, 2015 Stevens
D824457 July 31, 2018 Atanasio
D842376 March 5, 2019 Bassett
20020009697 January 24, 2002 Phan
Foreign Patent Documents
2678508 August 2008 CA
D078509-003 June 2012 WO
Other references
  • Amazon. Link: https://www.amazon.com/Multiplication-STICKER-Individual-Stickers-Division/dp/B07BD653FK. Mar. 14, 2015. Multiplication Sticker—25 Count Individual Stickers—Vinyl 4″×4″ Multiplication Division Stickers for Teachers and Students. (Year: 2015).
Patent History
Patent number: D892930
Type: Grant
Filed: Feb 15, 2019
Date of Patent: Aug 11, 2020
Inventor: Henry David Archbold (San Diego, CA)
Primary Examiner: Lauren D McVey
Application Number: 29/680,462
Classifications
Current U.S. Class: Teaching Material (D19/59)