Patent US3238645A successfully refreshed from Google Patents.
US3238645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational toy
Assignee: Individual
•
Filing: 1963-11-26
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Granted: 1966-03-08
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Everett E Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:10
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; A; A63; A63F; A63F9/00; A63F9/06; A63F9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN EDUCATIONAL TOY COMPRISING TWO IDENTICAL TRANSPARENT TRAYS OF HEXAGONAL SHAPE WITH A RETAINING BEAD PROVIDED AROUND THE PERIPHERY OF EACH OF SAID TRAYS, AN UNEVEN PLURALITY OF ROWS OF PIECES IDENTICAL IN SHAPE AND DIMENSIONS BUT OF DIFFERENT COLORS, EACH ROW HAVING TWELVE PIECES, WITH EACH OF SAID PIECES BEING IN THE FORM OF A FLAT 30*/60* TRIANGLE WITH ROUNDED CORNERS, THE THICKNESS OF SAID PIECES BEING SUCH THAT WHEN EITHER OF SAID TRAYS IS FILLED, THE UPPER ROW PROJECTS UPWARDLY OVER THE TOP OF THE RETAINING BEAD FOR A DISTANCE OF APPROXIMATELY HALF OF ITS THICKNESS.
Claim 2
Dependent Claim
98 words
AN EDUCATIONAL TOY COMPRISING TWO IDENTICAL TRANSPARENT TRAYS OF HEXAGONAL SHAPE WITH A RETAINING BEAD PROVIDED AROUND THE PERIPHERY OF EACH OF SAID TRAYS, AN UNEVEN PLURALITY OF ROWS OF PIECES IDENTICAL IN SHAPE AND DIMENSIONS BUT OF DIFFERENT COLORS, EACH ROW HAVING TWELVE PIECES, WITH EACH OF SAID PIECES BEING IN THE FORM OF A FLAT 30*/60* TRIANGLE WITH ROUNDED CORNERS, THE THICKNESS OF SAID PIECES BEING SUCH THAT WHEN EITHER OF SAID TRAYS IS FILLED, THE UPPER ROW PROJECTS UPWARDLY OVER THE TOP OF THE RETAINING BEAD FOR A DISTANCE OF APPROXIMATELY HALF OF ITS THICKNESS.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |