Patent US2414011A successfully refreshed from Google Patents.
US2414011A
Expired / Lapsed
US
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Reinforced concrete body
Assignee: Individual
•
Filing: 1943-03-16
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Granted: 1947-01-07
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Expires: 1963-03-16
Abstract
No abstract record available.
Inventors
- 👤 Karl P Billner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56; B28B21/60; B28B21/62; B28B23/00; B28B23/02; B28B23/04; B28B23/12; E; E04; E04G; E04G21/00; E04G21/12; E04G2021/127; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-01-06 | 1950-07-08 | 1951-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-01-06 | 1954-07-08 | 1955-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-01-06 | 1958-07-08 | 1959-01-07 | $7700.00 | Window Closed / Lapsed |