Patent US4173834A successfully refreshed from Google Patents.
US4173834A
Expired / Lapsed
US
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Educational mathematical game apparatus
Assignee: ARZOLA ALBERTO H
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Filing: 1977-08-17
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Granted: 1979-11-13
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Expires: 1997-08-17
Abstract
Abstract An apparatus for educational use in the playing of mathematical games utilizes forty-four playing cards. Each of the cards bears an enlarged numeral extending over the ranges from one to forty-four. Each card has the same surface carrying the enlarged numeral encoated wtih three multiplication steps and three division steps whereby one common numeral is used in each multiplication step and as a divisor in each division step. None of the numerals is extended beyond number 12 excepting the enlarged identifying numeral. The users record their proficiency in rapid use of each card, when randomly collected, on a score board having four wheels with a score imprinted thereon. The wheels are rotatably secured to a plate having windows exposing the score value on the wheels. Each of the four wheels are separately identified by a color, equivalent to the color of each four separately decorated medallions. The score achieved by the players results in the awarding of the medallion at the end of the play of the forty-four cards in sequence by the four players. Each player is scored as to speed and accuracy utilizing a time clock which may be started and stopped by the operation of two levers.
Inventors
- 👤 Alberto H. Arzola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:44
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; A; A63; A63F; A63F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
362 words
A plurality of playing cards, one lateral surface of each of said cards bearing indicia, including three formulas for numeral multiplication, said indicia including three formulas for numeral division, each of said formulas for numeral multiplication and each of said formulas for numeral division utilizing one common number as a multiplicand and as a divisor respectively, said one common number ranging from two to twelve, each of said formulas for multiplication and each of said formulas for division including an equal sign, each of said formulas for multiplication including a numeral representing the product of multiplication, each of said three formulas for division including individually one of said numerals representing said three products of multiplication as a dividend in said formulas for division, said three formulas for division including quotients, each of said three formulas for multiplication including one of three numbers as a multiplicand, each of said three numbers having a different numerical value, and equaling in numerical value said quotients, an enlarged numeral, each of said plurality of playing cards being identified by a different enlarged numeral, said different enlarged numeral being in sequential order, said enlarged numeral being located intermediate said three formulas for multiplication and said three formulas for division, said plurality of playing cards being forty-four in number, means to evaluate a score achieved by the users of said plurality of playing cards, said means including four wheels, said four wheels each being pivotably secured to a plate, said plate having four openings therein, said openings being disposed juxtaposed with the location of each of said four wheels, each of said four wheels suitably identified by an individual color, each of said four wheels carrying numerical indicia thereon, whereby said numerical indicia carried by said each of said four wheels may be viewed through said four openings, four individually colored and individually decorated medallions, each of said medallions having an equivalent color to said identifying color of said four wheels, a time clock, said clock for timing the completion of the use of said cards by said users, said clock including a manual start button and a manual stop button for operating a pointer of said clock.
Claim 2
Dependent Claim
362 words
A plurality of playing cards, one lateral surface of each of said cards bearing indicia, including three formulas for numeral multiplication, said indicia including three formulas for numeral division, each of said formulas for numeral multiplication and each of said formulas for numeral division utilizing one common number as a multiplicand and as a divisor respectively, said one common number ranging from two to twelve, each of said formulas for multiplication and each of said formulas for division including an equal sign, each of said formulas for multiplication including a numeral representing the product of multiplication, each of said three formulas for division including individually one of said numerals representing said three products of multiplication as a dividend in said formulas for division, said three formulas for division including quotients, each of said three formulas for multiplication including one of three numbers as a multiplicand, each of said three numbers having a different numerical value, and equaling in numerical value said quotients, an enlarged numeral, each of said plurality of playing cards being identified by a different enlarged numeral, said different enlarged numeral being in sequential order, said enlarged numeral being located intermediate said three formulas for multiplication and said three formulas for division, said plurality of playing cards being forty-four in number, means to evaluate a score achieved by the users of said plurality of playing cards, said means including four wheels, said four wheels each being pivotably secured to a plate, said plate having four openings therein, said openings being disposed juxtaposed with the location of each of said four wheels, each of said four wheels suitably identified by an individual color, each of said four wheels carrying numerical indicia thereon, whereby said numerical indicia carried by said each of said four wheels may be viewed through said four openings, four individually colored and individually decorated medallions, each of said medallions having an equivalent color to said identifying color of said four wheels, a time clock, said clock for timing the completion of the use of said cards by said users, said clock including a manual start button and a manual stop button for operating a pointer of said clock.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |