Patent US2568557A successfully refreshed from Google Patents.
US2568557A
Expired / Lapsed
US
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Construction toy
Assignee: Individual
•
Filing: 1947-06-05
•
Granted: 1951-09-18
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Expires: 1967-06-05
Abstract
No abstract record available.
Inventors
- 👤 Newbery Arthur Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:23
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US195689A
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US891091A
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US1192530A
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US1479209A
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FR706201A
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US1974838A
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US1954708A
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US2092687A
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US2098124A
Cited
US2218394A
Cited
GB537442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |