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USD398549S - Four-pan algebra balance - Google Patents

Four-pan algebra balance Download PDF

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Publication number
USD398549S
USD398549S US29/075,016 US7501697F USD398549S US D398549 S USD398549 S US D398549S US 7501697 F US7501697 F US 7501697F US D398549 S USD398549 S US D398549S
Authority
US
United States
Prior art keywords
algebra
pan
balance
view
ornamental design
Prior art date
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.)
Expired - Lifetime
Application number
US29/075,016
Inventor
George Kung
Ken Vicchiollo
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.)
A Daigger and Co Inc
Original Assignee
Cuisenaire Company of America 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 Cuisenaire Company of America Inc filed Critical Cuisenaire Company of America Inc
Priority to US29/075,016 priority Critical patent/USD398549S/en
Assigned to CUISENAIARE COMPANY OF AMERICA, INC. reassignment CUISENAIARE COMPANY OF AMERICA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VICCHIOLLO, KEN, KUNG, GEORGE
Application granted granted Critical
Publication of USD398549S publication Critical patent/USD398549S/en
Assigned to A. DAIGGER & COMPANY, INC. reassignment A. DAIGGER & COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CUISENAIRE COMPANY OF AMERICA, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a front view of a four-pan algebra balance showing my new design;
FIG. 2 is a right side view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.

Claims (1)

  1. The ornamental design for a four-pan algebra balance, as shown.
US29/075,016 1997-08-11 1997-08-11 Four-pan algebra balance Expired - Lifetime USD398549S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/075,016 USD398549S (en) 1997-08-11 1997-08-11 Four-pan algebra balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/075,016 USD398549S (en) 1997-08-11 1997-08-11 Four-pan algebra balance

Publications (1)

Publication Number Publication Date
USD398549S true USD398549S (en) 1998-09-22

Family

ID=71578858

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/075,016 Expired - Lifetime USD398549S (en) 1997-08-11 1997-08-11 Four-pan algebra balance

Country Status (1)

Country Link
US (1) USD398549S (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD611375S1 (en) * 2009-09-11 2010-03-09 Youth Toy Enterprise Co., Ltd. Balance for teaching

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US784145A (en) 1904-08-23 1905-03-07 Franklin Christian Donecker Educational device.
US3000114A (en) 1958-10-14 1961-09-19 Orlov Konstantin Combined balance for solving equations and inequalities
US3721019A (en) 1971-03-19 1973-03-20 L Befferman Initial condition indication
US3742619A (en) 1972-06-29 1973-07-03 N Jenks Teaching aid
US4713009A (en) 1986-06-11 1987-12-15 Henry Borenson Teaching apparatus and method for solving algebraic linear equations
US5425643A (en) 1991-06-28 1995-06-20 Strickland; William A. Mechanical, analog type, teaching aid computer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US784145A (en) 1904-08-23 1905-03-07 Franklin Christian Donecker Educational device.
US3000114A (en) 1958-10-14 1961-09-19 Orlov Konstantin Combined balance for solving equations and inequalities
US3721019A (en) 1971-03-19 1973-03-20 L Befferman Initial condition indication
US3742619A (en) 1972-06-29 1973-07-03 N Jenks Teaching aid
US4713009A (en) 1986-06-11 1987-12-15 Henry Borenson Teaching apparatus and method for solving algebraic linear equations
US5425643A (en) 1991-06-28 1995-06-20 Strickland; William A. Mechanical, analog type, teaching aid computer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD611375S1 (en) * 2009-09-11 2010-03-09 Youth Toy Enterprise Co., Ltd. Balance for teaching

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