US2871554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for post-tensioning the reinforcing of a prestressed concrete structure
Assignee: Losinger Holding AG
•
Filing: 1955-06-06
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Granted: 1959-02-03
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Siegfried Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:47
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/12; E04G21/121; B; B28; B28B; B28B23/00; B28B23/02; B28B23/04; B28B23/043; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735168A
Cited
US1500204A
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US2332032A
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US2637895A
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US2571265A
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US2737802A
Cited
US2609586A
Cited
US2728978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |