US2916795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding reinforced concrete building slabs, columns and girders
Assignee: Individual
•
Filing: 1957-05-03
•
Granted: 1959-12-15
•
Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Henderson Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:58
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/02; B28B7/24; B28B7/241; B28B7/246; B28B7/40; B28B7/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2511829A
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US1163248A
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US2306548A
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US2250020A
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US2512092A
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US2495100A
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US2453223A
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US2510810A
Cited
US2583818A
Cited
US2771656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |