US2674115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pretensioned reinforcement for prestressed structures
Assignee: Societe des Grands Travaux de Marseille SA
•
Filing: 1950-06-09
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Granted: 1954-04-06
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Expires: 1970-06-09
Abstract
No abstract record available.
Inventors
- 👤 Chalos Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE300377C
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US81193A
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US1828476A
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US2417141A
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US2378584A
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US2449276A
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US2460524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |