US5033754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Algebraic equation solving card game
Assignee: Individual
•
Filing: 1990-09-24
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Granted: 1991-07-23
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Expires: 2010-09-24
Abstract
Abstract Card game apparatus and method of play involve the systematic solution of algebraic equations. The apparatus includes an algebraic equation and a set of cards having indicia denoting the mathematical operations of "multiply", "divide", "add X's", "subtract X's", "add constant", and "subtract constant". Players are dealt cards and take turns modifying the equation by performing mathematical operations directed by cards they hold. The person who solves the equation is the winner. Play money may be used to keep score.
Inventors
- 👤 Kenneth B. Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:33
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/06; A63F3/0625; A63F3/00003; A63F3/00063; A63F2003/00066
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
Game apparatus comprising an algebraic equation containing an unknown, "X," therein, and a set of playing cards having indicia imprinted thereon directing the performance of one of the following mathematical operations: Multiply Divide Add "X's" Subtract "X's" Add constant Subtract constant; said mathematical operations representing all possible operations capable of being performed on any algebraic equation of said set and any other algebraic equation containing an unknown "X"; said set containing at least one card depicting each of said mathematical operations.
Claim 2
Dependent Claim
81 words
Game apparatus comprising an algebraic equation containing an unknown, "X," therein, and a set of playing cards having indicia imprinted thereon directing the performance of one of the following mathematical operations: Multiply Divide Add "X's" Subtract "X's" Add constant Subtract constant; said mathematical operations representing all possible operations capable of being performed on any algebraic equation of said set and any other algebraic equation containing an unknown "X"; said set containing at least one card depicting each of said mathematical operations.
Claim 3
Dependent Claim
18 words
The game apparatus of claim 1, wherein said set contains multiple cards depicting each of said mathematical operations.
Claim 4
Dependent Claim
31 words
The game apparatus of claim 1, wherein said set of playing cards contains at least one card having indicia thereon directing the performance of more than one of said mathematical operations.
Claim 5
Dependent Claim
65 words
A method of playing a game utilizing the game apparatus of claim 3, comprising the steps of dealing a plurality of said playing cards to a plurality of players and permitting each player, in turn, to play an appropriate one of his cards and perform the mathematical operation directed thereby on said equation until the equation is solved to indicate the value of the unknown.
Claim 6
Dependent Claim
64 words
A method of playing a game utilizing the game apparatus of claim 1, comprising the steps of dealing a plurality of playing cards to a plurality of players and permitting each player, in turn, to play an appropriate one of his cards and perform the mathematical operation directed thereby on said equation until the equation is solved to indicate the value of the unknown.
Claim 7
Dependent Claim
87 words
Game apparatus comprising a set of algebraic equations, each containing an unknown, "X", therein, and a set of playing cards having indicia imprinted thereon directing the performance of one of the following mathematical operations: Multiply Divide Add X's Subtract X's, Add constant Subtract constant; said mathematical operations representing all possible operations capable of being performed on any algebraic equation of said set and any other algebraic equation containing an unknown "X"; said set of playing cards containing at least one card depicting each of said mathematical operations.
Claim 8
Dependent Claim
87 words
Game apparatus comprising a set of algebraic equations, each containing an unknown, "X", therein, and a set of playing cards having indicia imprinted thereon directing the performance of one of the following mathematical operations: Multiply Divide Add X's Subtract X's, Add constant Subtract constant; said mathematical operations representing all possible operations capable of being performed on any algebraic equation of said set and any other algebraic equation containing an unknown "X"; said set of playing cards containing at least one card depicting each of said mathematical operations.
Claim 9
Dependent Claim
18 words
The game apparatus of claim 4, wherein said set contains multiple cards depicting each of said mathematical operations.
Claim 10
Dependent Claim
31 words
The game apparatus of claim 6, wherein said set of playing cards contains at least one card having indicia thereon directing the performance of more than one of said mathematical operations.
Claim 11
Dependent Claim
71 words
A method of playing a game utilizing the game apparatus of claim 8, comprising the steps of selecting one of said algebraic equations, dealing a plurality of said playing cards to a plurality of players and permitting each player, in turn, to play an appropriate one of his cards and perform the mathematical operation directed thereby on said equation until the equation is solved to indicate the value of the unknown.
Claim 12
Dependent Claim
71 words
A method of playing a game utilizing the game apparatus of claim 6, comprising the steps of selecting one of said algebraic equations, dealing a plurality of said playing cards to a plurality of players and permitting each player, in turn, to play an appropriate one of his cards and perform the mathematical operation directed thereby on said equation until the equation is solved to indicate the value of the unknown.
References Cited (Backward Citations)
US4029320A
Cited
US4281835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |