US3083475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction kit for the representation of two-dimensional figures, mainly intended for the tuition of mathematics and similar purposes
Assignee: AGNES M L T LEPOUDRE
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Filing: 1959-11-03
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Granted: 1963-04-02
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Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 Edmondus Josephus C Lepoudre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/02; G09B23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A CONSTRUCTION KIT FOR REPRESENTING PLANE FIGURES IN THE STUDY OF MATHEMATICS AND RELATED SUBJECTS, COMPRISING, IN COMBINATION, A SUPPORTING BOARD HAVING A PLURALITY OF UNIFORMLY DISPOSED SIMILAR HOLES; A PLURALITY OF ELEMENTS SERVING AS FIXED POINTS OF THE GEOMETRICAL FIGURE TO BE FORMED UPON THE BOARD, A PLURALITY OF ELEMENTS SERVING AS MOVABLE POINTS OF THE GEOMETRICAL FIGURE TO BE FORMED UPON THE BOARD, AUXILIARY CONNECTING ELEMENTS AND ROD-SHAPED LINEAR ELEMENTS FOR INTERCONNECTING SAID FIXED-POINT ELEMENTS, SAID AUXILIARY CONNECTING ELEMENTS AND SAID MOVABLE-POINT ELEMENTS, EACH OF SAID FIXEDPOINT ELEMENTS COMPRISING MEANS FIXING IT IN ONE OF SAID HOLES AND MEANS RECEIVING ONE OF SAID LINEAR ELEMENTS, EACH OF SAID MOVABLE-POINT ELEMENTS COMPRISING A PORTION ADAPTED TO SLIDE UPON SAID BOARD AND MEANS ENCLOSING ONE OF SAID LINEAR ELEMENTS FOR GUIDING MOVEMENT ALONG THE LINEAR ELEMENT, EACH OF SAID AUXILIARY CONNECTING ELEMENTS COMPRISING MEANS RECEIVING ONE OF SAID LINEAR ELEMENTS AND MEANS FOR MOUNTING IT UPON A FIXEDPOINT OR MOVABLE-POINT ELEMENT.
Claim 2
Dependent Claim
161 words
A CONSTRUCTION KIT FOR REPRESENTING PLANE FIGURES IN THE STUDY OF MATHEMATICS AND RELATED SUBJECTS, COMPRISING, IN COMBINATION, A SUPPORTING BOARD HAVING A PLURALITY OF UNIFORMLY DISPOSED SIMILAR HOLES; A PLURALITY OF ELEMENTS SERVING AS FIXED POINTS OF THE GEOMETRICAL FIGURE TO BE FORMED UPON THE BOARD, A PLURALITY OF ELEMENTS SERVING AS MOVABLE POINTS OF THE GEOMETRICAL FIGURE TO BE FORMED UPON THE BOARD, AUXILIARY CONNECTING ELEMENTS AND ROD-SHAPED LINEAR ELEMENTS FOR INTERCONNECTING SAID FIXED-POINT ELEMENTS, SAID AUXILIARY CONNECTING ELEMENTS AND SAID MOVABLE-POINT ELEMENTS, EACH OF SAID FIXEDPOINT ELEMENTS COMPRISING MEANS FIXING IT IN ONE OF SAID HOLES AND MEANS RECEIVING ONE OF SAID LINEAR ELEMENTS, EACH OF SAID MOVABLE-POINT ELEMENTS COMPRISING A PORTION ADAPTED TO SLIDE UPON SAID BOARD AND MEANS ENCLOSING ONE OF SAID LINEAR ELEMENTS FOR GUIDING MOVEMENT ALONG THE LINEAR ELEMENT, EACH OF SAID AUXILIARY CONNECTING ELEMENTS COMPRISING MEANS RECEIVING ONE OF SAID LINEAR ELEMENTS AND MEANS FOR MOUNTING IT UPON A FIXEDPOINT OR MOVABLE-POINT ELEMENT.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |