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USD841733S1 - Educational apparatus for learning math - Google Patents

Educational apparatus for learning math Download PDF

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Publication number
USD841733S1
USD841733S1 US29/522,910 US201529522910F USD841733S US D841733 S1 USD841733 S1 US D841733S1 US 201529522910 F US201529522910 F US 201529522910F US D841733 S USD841733 S US D841733S
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US
United States
Prior art keywords
educational apparatus
view
learning math
math
learning
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US29/522,910
Inventor
Raymond J. Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Learntools Inc
Original Assignee
Learntools Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Learntools Inc filed Critical Learntools Inc
Priority to US29/522,910 priority Critical patent/USD841733S1/en
Assigned to LearnTools Inc. reassignment LearnTools Inc. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HERRMANN, RAYMOND J.
Application granted granted Critical
Publication of USD841733S1 publication Critical patent/USD841733S1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 (1)

    CLAIM
  1. The ornamental design for an educational apparatus for learning math, as shown and described.
US29/522,910 2015-04-03 2015-04-03 Educational apparatus for learning math Active USD841733S1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/522,910 USD841733S1 (en) 2015-04-03 2015-04-03 Educational apparatus for learning math

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/522,910 USD841733S1 (en) 2015-04-03 2015-04-03 Educational apparatus for learning math

Publications (1)

Publication Number Publication Date
USD841733S1 true USD841733S1 (en) 2019-02-26

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Family Applications (1)

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US29/522,910 Active USD841733S1 (en) 2015-04-03 2015-04-03 Educational apparatus for learning math

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US (1) USD841733S1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD878459S1 (en) * 2018-03-16 2020-03-17 Lynn Rule Counting device
USD921109S1 (en) * 2015-10-08 2021-06-01 Dale Ylitalo Manual calculating device
US20220001260A1 (en) * 2020-07-06 2022-01-06 Robert M. Zeidman Pool Lap Counter

Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US378866A (en) * 1888-03-06 Abacus
US1099009A (en) * 1913-06-21 1914-06-02 Augustus P Bennett Calculator or abacus.
US1144487A (en) * 1913-04-10 1915-06-29 Evelyn G Mcginley Counting device.
US1441323A (en) * 1921-07-23 1923-01-09 Allan J Barber Abacus frame
US2228554A (en) * 1939-07-11 1941-01-14 Charles A Brown Abacus
US2646631A (en) 1947-01-22 1953-07-28 Lazar Nathan Combined abacus and counting rack
US2654164A (en) * 1953-07-21 1953-10-06 Seidenberg Oscar Abacus
US2655737A (en) 1952-03-28 1953-10-20 Daintee Toys Inc Abacus
US2872742A (en) * 1954-12-10 1959-02-10 Andrew F Schott Abacus with magnetic means for holding unit counters in position
US3076272A (en) * 1959-05-28 1963-02-05 Andrew F Schott Abacus
US3508348A (en) * 1967-11-28 1970-04-28 Kogane Harada Magnetic soroban (abacus)
US3633287A (en) 1970-05-06 1972-01-11 Fitz A Squires Numerical base systems teaching device
US3688418A (en) * 1970-03-09 1972-09-05 Wilson Henry A Manual computing device
US3731401A (en) * 1971-05-21 1973-05-08 T Kojima Abacus instruction device
USD248332S (en) * 1976-11-26 1978-06-27 Bailey Deceased Rex V Combined domino holder and score counter
US4295832A (en) * 1979-11-05 1981-10-20 Karell Manuel L Educational toy
US4812124A (en) * 1988-02-19 1989-03-14 Lawrence A. Clopper Hexadecimal abacus
US4884973A (en) * 1989-01-18 1989-12-05 Kyoungsik Pak Mathematic teaching aid
US4993952A (en) * 1989-10-30 1991-02-19 Lucky Star Enterprise Co., Ltd. Arithmetic counter
US20070166673A1 (en) 2006-01-13 2007-07-19 Frieman Shlomo R Abacus
US20080280273A1 (en) * 2005-10-13 2008-11-13 Han-Cheun Lee Multipurpose Abacus
US20120028229A1 (en) 2010-07-30 2012-02-02 James Richard Harte Augmented simple abacus with an underlying grid of numbers or a blank sheet
US20120251986A1 (en) * 2011-03-28 2012-10-04 Letha Silas-Martin Abacus-type math teaching device and method
USD674441S1 (en) * 2009-10-21 2013-01-15 Scott Rule Counting device
US20130052617A1 (en) 2011-08-22 2013-02-28 James Richard Harte Use of beads on a rope, with a parallel printed sequence
US20130236864A1 (en) 2012-03-08 2013-09-12 James Richard Harte Use of colored beads in an augmented simple abacus

Patent Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US378866A (en) * 1888-03-06 Abacus
US1144487A (en) * 1913-04-10 1915-06-29 Evelyn G Mcginley Counting device.
US1099009A (en) * 1913-06-21 1914-06-02 Augustus P Bennett Calculator or abacus.
US1441323A (en) * 1921-07-23 1923-01-09 Allan J Barber Abacus frame
US2228554A (en) * 1939-07-11 1941-01-14 Charles A Brown Abacus
US2646631A (en) 1947-01-22 1953-07-28 Lazar Nathan Combined abacus and counting rack
US2655737A (en) 1952-03-28 1953-10-20 Daintee Toys Inc Abacus
US2654164A (en) * 1953-07-21 1953-10-06 Seidenberg Oscar Abacus
US2872742A (en) * 1954-12-10 1959-02-10 Andrew F Schott Abacus with magnetic means for holding unit counters in position
US3076272A (en) * 1959-05-28 1963-02-05 Andrew F Schott Abacus
US3508348A (en) * 1967-11-28 1970-04-28 Kogane Harada Magnetic soroban (abacus)
US3688418A (en) * 1970-03-09 1972-09-05 Wilson Henry A Manual computing device
US3633287A (en) 1970-05-06 1972-01-11 Fitz A Squires Numerical base systems teaching device
US3731401A (en) * 1971-05-21 1973-05-08 T Kojima Abacus instruction device
USD248332S (en) * 1976-11-26 1978-06-27 Bailey Deceased Rex V Combined domino holder and score counter
US4295832A (en) * 1979-11-05 1981-10-20 Karell Manuel L Educational toy
US4812124A (en) * 1988-02-19 1989-03-14 Lawrence A. Clopper Hexadecimal abacus
US4884973A (en) * 1989-01-18 1989-12-05 Kyoungsik Pak Mathematic teaching aid
US4993952A (en) * 1989-10-30 1991-02-19 Lucky Star Enterprise Co., Ltd. Arithmetic counter
US20080280273A1 (en) * 2005-10-13 2008-11-13 Han-Cheun Lee Multipurpose Abacus
US20070166673A1 (en) 2006-01-13 2007-07-19 Frieman Shlomo R Abacus
USD674441S1 (en) * 2009-10-21 2013-01-15 Scott Rule Counting device
US20120028229A1 (en) 2010-07-30 2012-02-02 James Richard Harte Augmented simple abacus with an underlying grid of numbers or a blank sheet
US20120251986A1 (en) * 2011-03-28 2012-10-04 Letha Silas-Martin Abacus-type math teaching device and method
US20130052617A1 (en) 2011-08-22 2013-02-28 James Richard Harte Use of beads on a rope, with a parallel printed sequence
US20130236864A1 (en) 2012-03-08 2013-09-12 James Richard Harte Use of colored beads in an augmented simple abacus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD921109S1 (en) * 2015-10-08 2021-06-01 Dale Ylitalo Manual calculating device
USD878459S1 (en) * 2018-03-16 2020-03-17 Lynn Rule Counting device
US20220001260A1 (en) * 2020-07-06 2022-01-06 Robert M. Zeidman Pool Lap Counter
US11511177B2 (en) * 2020-07-06 2022-11-29 Z Enterprises Pool lap counter

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