US3488880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stackable toy block having viewable design rotatably mounted therein
Assignee: STEVEN Manufacturing Co
•
Filing: 1966-10-17
•
Granted: 1970-01-13
•
Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Beverly W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US955435A
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US2504650A
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US2554942A
Cited
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US2935814A
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FR1286556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |