Patent US2401092A successfully refreshed from Google Patents.
US2401092A
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US
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Prestressed steel pipe
Assignee: Price Brothers Co
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Filing: 1943-10-09
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Granted: 1946-05-28
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Expires: 1963-10-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Miller
- 👤 Paul L Osweller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/14; F16L9/153; F16L13/00; F16L13/02; F16L13/029; F16L9/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874; Y10T29/49888
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) | 1949-05-27 | 1949-11-26 | 1950-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-27 | 1953-11-26 | 1954-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-27 | 1957-11-26 | 1958-05-28 | $7700.00 | Window Closed / Lapsed |