US3661392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arithmetic cards and game utilizing such
Assignee: Individual
•
Filing: 1970-08-10
•
Granted: 1972-05-09
•
Expires: 1990-08-10
Abstract
Abstract A new and improved card specifies arithmetical relationships in a manner permitting a new and improved arithmetic game to be played for education or entertainment using a plurality of such cards.
Inventors
- 👤 Thomas M Abney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:50
CPC Classifications
A; A63; A63F; A63F1/00; A63F3/00; A63F3/04; A63F3/0415
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
An arithmetic game played for education and entertainment, comprising: a plurality of arithmetic card means, each of said card means having a value specified by an operator integer and a mathematical operation, and further having a plurality of operand integers, and further being divided into a plurality of fields, each of said fields allocated respectively to one of said plurality of operand integers and said operator integer, and each of said fields being further divided into a plurality of regions, each of said regions allocated to a mathematical operation performable by the operator integer upon the operand integer allocated to said field ad containing indicia defining the result of such mathematical operation, and further including an aperture in the field of the mathematical operation of the region of said card allocated to such operator integer, whereby the players of the game sequentially superimpose a preselected one of said card means on the card means previously played and determine the value and score for the play by inspecting the indicia visible through the aperture in the preselected card most recently played.
Claim 2
Dependent Claim
180 words
An arithmetic game played for education and entertainment, comprising: a plurality of arithmetic card means, each of said card means having a value specified by an operator integer and a mathematical operation, and further having a plurality of operand integers, and further being divided into a plurality of fields, each of said fields allocated respectively to one of said plurality of operand integers and said operator integer, and each of said fields being further divided into a plurality of regions, each of said regions allocated to a mathematical operation performable by the operator integer upon the operand integer allocated to said field ad containing indicia defining the result of such mathematical operation, and further including an aperture in the field of the mathematical operation of the region of said card allocated to such operator integer, whereby the players of the game sequentially superimpose a preselected one of said card means on the card means previously played and determine the value and score for the play by inspecting the indicia visible through the aperture in the preselected card most recently played.
Claim 3
Dependent Claim
52 words
The structure of claim 1, including: said card means having a region specifying an additive mathematical operation to be performed by the operator integer upon such operand integers and containing indicia defining the result of such operation in an addition field in said region of the card allocated to such operand integers.
Claim 4
Dependent Claim
52 words
The structure of claim 1, including: said card means having a region specifying a subtractive mathematical operation to be performed by the operator integer upon such operand integers and containing indicia defining the result of such operation in a subtraction field in said region of the card allocated to such operand integers.
Claim 5
Dependent Claim
51 words
The structure of claim 1, including: said card means having a region specifying a multiplicative mathematical operation to be performed by the operator integer upon such operand integers and containing indicia defining the result of such operation in a field in the region of the card allocated to such operand integers.
Claim 6
Dependent Claim
51 words
The structure of claim 1, including: each of said card means specifying a divisive mathematical operation to be performed by the operator integer upon such operand integers and containing indicia defining the result of such operation in a division field in the region of the card allocated to such operand integers.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |