US2659422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking precast concrete bench
Assignee: DELTA CONCRETE PRODUCTS Co Inc
•
Filing: 1950-06-22
•
Granted: 1953-11-17
•
Expires: 1970-06-22
Abstract
No abstract record available.
Inventors
- 👤 Victor L Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:29
CPC Classifications
A; A47; A47C; A47C11/00; A47C5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1639085A
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US1862382A
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US1880335A
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US2025088A
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US2390878A
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US2429000A
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US2456794A
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US2517433A
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US2518532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |