Patent US2963796A successfully refreshed from Google Patents.
US2963796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational toy
Assignee: Individual
•
Filing: 1959-02-27
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Granted: 1960-12-13
•
Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Albert M Zalkind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:16
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/08; A63F2250/00; A63F2250/24; A63F9/0666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1877643A
Cited
US2303652A
Cited
US2377100A
Cited
US2416959A
Cited
US2664077A
Cited
US2774179A
Cited
US2774150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |