US2629135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of concrete construction
Assignee: Individual
•
Filing: 1948-11-23
•
Granted: 1953-02-24
•
Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:55
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/008; B28B19/00; B28B7/00; B28B7/0064; B28B7/007; B28B7/0073; B28B7/10; B28B7/12; B28B7/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1386314A
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US1411005A
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US1592536A
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US1583748A
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US1571849A
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US1678613A
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US1916308A
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US2101992A
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US2047356A
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US2058295A
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US2114794A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |