US2656618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational toy
Assignee: Individual
•
Filing: 1952-05-06
•
Granted: 1953-10-27
•
Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Igino P Pescatori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:57
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; G09B19/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425244A
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US1527663A
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US2453909A
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US760360A
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US731175A
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US1400887A
Cited
US1529953A
Cited
US2239344A
Cited
US2389359A
Cited
US2472439A
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US2512837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |