US4177578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-page problem and answer workbook
Assignee: Individual
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Filing: 1977-12-30
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Granted: 1979-12-11
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Expires: 1997-12-30
Abstract
Abstract A workbook is provided for the study of preparing not only an expected answer from a given problem but also an expected problem from a given answer. This workbook comprises a first page provided with a problem section and an adjacent expected answer guide section, adjacent to each other, a transparent second page superimposable upon the first page, and an opaque sheet adapted to be inserted between the first and second pages. The second page is provided with an answer section, and an expected problem guide section both of which are respectively located at corresponding positions above the expected answer guide section and the problem section when the second page is superimposed upon the first page.
Inventors
- 👤 Takeshi Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:06
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; G09B1/00; G09B19/06; G09B19/08; G09B3/00; G09B3/02; G09B3/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
322 words
A multi-page problem and answer workbook comprising: a first page having thereon a problem section setting forth a problem to be answered and an adjacent expected answer guide section on which a student may place an expected answer to said problem; a transparent second page superimposable over said first page, said second page having thereon an answer section setting forth the correct answer to said problem of said problem section on said first page and an adjacent expected problem guide section on which the student may place an expected problem which is correctly answered by said correct answer; said answer section and said expected problem guide section being positioned on said second page such that when said second page is superimposed over said first page said answer section and said expected problem guide section respectively overlie said expected answer guide section and said problem section of said first page and; an opaque sheet means, selectively insertable between said first and second pages, for preventing said problem section and said expected answer in said expected answer guide section on said first page from being visible through said second page when said second page is superimposed over said first page; whereby said expected answer guide section of said first page comprises means for allowing the student to insert an expected answer to said problem of said problem section by using said first page only, said expected problem guide section of said second page comprises means for allowing the student to insert an expected problem which is answered by said correct answer of said answer section by using said second page only, and said correct answer of said answer section may be compared with said expected answer inserted in said expected answer guide section and said problem in said problem section may be compared with said expected problem inserted into said expected problem guide section when said second page is superimposed over said first page.
Claim 2
Dependent Claim
322 words
A multi-page problem and answer workbook comprising: a first page having thereon a problem section setting forth a problem to be answered and an adjacent expected answer guide section on which a student may place an expected answer to said problem; a transparent second page superimposable over said first page, said second page having thereon an answer section setting forth the correct answer to said problem of said problem section on said first page and an adjacent expected problem guide section on which the student may place an expected problem which is correctly answered by said correct answer; said answer section and said expected problem guide section being positioned on said second page such that when said second page is superimposed over said first page said answer section and said expected problem guide section respectively overlie said expected answer guide section and said problem section of said first page and; an opaque sheet means, selectively insertable between said first and second pages, for preventing said problem section and said expected answer in said expected answer guide section on said first page from being visible through said second page when said second page is superimposed over said first page; whereby said expected answer guide section of said first page comprises means for allowing the student to insert an expected answer to said problem of said problem section by using said first page only, said expected problem guide section of said second page comprises means for allowing the student to insert an expected problem which is answered by said correct answer of said answer section by using said second page only, and said correct answer of said answer section may be compared with said expected answer inserted in said expected answer guide section and said problem in said problem section may be compared with said expected problem inserted into said expected problem guide section when said second page is superimposed over said first page.
Claim 3
Dependent Claim
79 words
A workbook as claimed in claim 1, wherein said expected answer guide section on said first page comprises a frame or brackets adapted to visually enclose said answer section on said second page when said second page is superimposed over said first page, and said expected problem guide section on said second page comprises a frame or brackets adapted to visually enclose said problem section on said first page when said second page is superimposed over said first page.
Claim 4
Dependent Claim
44 words
A workbook as claimed in claim 1, wherein said workbook is adapted to the study of language, said problem section on said first page is composed of a first language, and said answer section on said second page is composed of a second language.
Claim 5
Dependent Claim
105 words
A workbook as claimed in claim 1, wherein said workbook is adapted to the study of the four arithmetic rules, said problem section on said first page comprising at least two numerals forming an arithmetic problem of at least one of said arithmetic rules, said answer section on said second page comprising a numerical answer to said arithmetic problem, and said second page further has thereon, adjacent said numerical answer, at least one of said numerals of said arithmetic problem, said one numeral on said both pages being arranged to be registered with each other when said second page is superimposed over said first page.
Claim 6
Dependent Claim
87 words
A workbook as claimed in claim 4, wherein said first page includes a drawing adjacent to said problem section, said drawing having a figure corresponding to one of said numerals of said arithmetic problem, and said second page includes a drawing having a figure corresponding to the other of said numerals of said arithmetic problem on said first page, said figures on both of said pages being adapted to visually illustrate the answer to said arithmetic problem when said second page is superimposed over said first page.
Claim 7
Dependent Claim
23 words
A workbook as claimed in claim 1, wherein said first and second pages are bound to each other at one adjacent margin thereof.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |