US2615228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building block machine
Assignee: Individual
•
Filing: 1947-12-19
•
Granted: 1952-10-28
•
Expires: 1967-12-19
Abstract
No abstract record available.
Inventors
- 👤 Regan Barrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:56
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/021; B28B15/00; B28B15/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455160A
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US1905619A
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US874482A
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US1085973A
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US1127660A
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US1027315A
Cited
US1173135A
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US1127521A
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US1330172A
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US1482646A
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US2492415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |