Education and demonstration – Mathematics – Arithmetic
Reexamination Certificate
2005-01-14
2009-06-23
Fernstrom, Kurt (Department: 3711)
Education and demonstration
Mathematics
Arithmetic
C434S191000
Reexamination Certificate
active
07549865
ABSTRACT:
A mathematical manipulative comprising a board with at least one row of numbers having one or more first cooperating answer elements associated with the row of numbers and one or more answer markers having a second cooperating answer element for removable engagement and/or connection with at least one of the one or more first cooperating answer elements.
REFERENCES:
patent: 793676 (1905-07-01), Olivera
patent: 1403989 (1922-01-01), Verneau
patent: 2472439 (1949-06-01), Rogers
patent: 2502238 (1950-03-01), Wade et al.
patent: 2514636 (1950-07-01), Glaze
patent: 2701423 (1955-02-01), Merrill
patent: 2714261 (1955-08-01), Hight
patent: 2971275 (1961-02-01), Provenzano
patent: 3002295 (1961-10-01), Armstrong
patent: 3224114 (1965-12-01), Swanson
patent: 3229388 (1966-01-01), Smith
patent: 3290798 (1966-12-01), Gilbert
patent: 3410002 (1968-11-01), Mulholland et al.
patent: 3586333 (1971-06-01), Abney
patent: 3667760 (1972-06-01), Nelson
patent: 3935649 (1976-02-01), Harte
patent: 4106216 (1978-08-01), Boehm
patent: 4176474 (1979-12-01), O'Sullivan
patent: 4979749 (1990-12-01), Onanian
patent: 5120226 (1992-06-01), Tsai
patent: 5219289 (1993-06-01), Derr
patent: 5297965 (1994-03-01), Manancero
patent: 5421732 (1995-06-01), Taylor
patent: 5707238 (1998-01-01), Bush
patent: 5738524 (1998-04-01), Tsao
patent: 5971269 (1999-10-01), Baguley
patent: 6077079 (2000-06-01), Barnes
patent: 6089871 (2000-07-01), Jaffe
patent: 6132216 (2000-10-01), Muntean et al.
patent: 6513708 (2003-02-01), Evans
patent: 6575754 (2003-06-01), Salvo
patent: 6758675 (2004-07-01), Karabaic
patent: 7040898 (2006-05-01), Marcus et al.
patent: 7104799 (2006-09-01), Sansing
patent: 2002/0015936 (2002-02-01), Donn
patent: 2066547 (1981-07-01), None
Nienhuis Montessori, Multiplication Board Set, p. 64.
Nienhuis Montessori, Unit Division Board, p. 65.
Nienhuis Montessori, Addition Strip Board, p. 60.
Nienhuis Montessori, Subtraction Strip Boards, p. 62.
Fernstrom Kurt
Hedman & Costigan ,P.C.
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