Patent US3611618A successfully refreshed from Google Patents.
US3611618A
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US
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Child's educational device
Assignee: Individual
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Filing: 1969-08-22
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Granted: 1971-10-12
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Expires: 1989-08-22
Abstract
Abstract A CHILD''S EDUCATIONAL DEVICE WHICH INCREASES PERCEPTIVE NESS AS TO COLOR AND FORM AND INCLUDES A MEMBER HAVING AN EXTERNAL SURFACE THAT IS SUBDIVIDED INTO A NUMBER OF EACH OF SAID OBJECTS BEING COMPLEMENATARY IN SHAPE AND COLOR TO ONE OF SAID AREAS. THE OBJECTS AND MEMBER INCLUDE MANS FOR REMOVABLY HOLDING THEM TOGETHER WHEN THE SURFACES OF THE OBJECTS ARE IN ABUTTING CONTACT OR ADJACENTLY DISPOSED, AND WHEN THE OBJECTS ARE SO POSITIONED RELATIVE TO THE MEMBER, THEY ARE IN A PREDETERMINED PATTERN AND COOPERATE WITH THE MEMBER TO DEFINE A REPLICA OF A PIECE OF EQUIPMENT WITH WHICH A CHILD IS FAMILAR.
Inventors
- 👤 Arthur F Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:31
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |