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US2616284A
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US
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Precast concrete block joint
Assignee: Individual
•
Filing: 1949-04-26
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Granted: 1952-11-04
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Expires: 1969-04-26
Abstract
No abstract record available.
Inventors
- 👤 Leontovich Valerian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:13
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/20; E04B1/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531520A
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US876985A
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US1112069A
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US1355572A
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US1349901A
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GB357422A
Cited
US2165686A
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US2396045A
Cited
US2420427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |