US2897654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piles for marine structures
Assignee: Frederic R Harris Inc
•
Filing: 1951-02-08
•
Granted: 1959-08-04
•
Expires: 1971-02-08
Abstract
No abstract record available.
Inventors
- 👤 Michael S Lobenthal
- 👤 Bloch Monroe Percy
- 👤 Florence B Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:30
CPC Classifications
E; E02; E02B; E02B17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US676993A
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US1048194A
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US1718006A
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FR708148A
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US2171672A
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US2248051A
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US2318685A
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US2607198A
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US2637172A
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US2687017A
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US2589146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |