Patent US2919552A successfully refreshed from Google Patents.
US2919552A
Expired / Lapsed
US
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Method of stabilizing submerged hulls on sand bottoms
Assignee: Individual
•
Filing: 1953-09-02
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Granted: 1960-01-05
•
Expires: 1973-09-02
Abstract
No abstract record available.
Inventors
- 👤 Hayward John Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:01
CPC Classifications
E; E02; E02D; E02D23/00; E02D23/16; E02B; E02B17/00; E02B17/02; E02B17/027; E02D3/00; E02D3/02; E02D3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE11767C
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US1681533A
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US1837498A
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US2210408A
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US2422168A
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US2482788A
Cited
US2608829A
Cited
US2607198A
Cited
US2691272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |