Patent US2947148A successfully refreshed from Google Patents.
US2947148A
Expired / Lapsed
US
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Jacking mechanism for seadrome
Assignee: Sunoco Inc
•
Filing: 1954-06-28
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Granted: 1960-08-02
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Einar T Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:04
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0809; E02B17/0836; E02B17/0872
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2308743A
Cited
US2334992A
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US2407796A
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US2540679A
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US2558401A
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US2764133A
Cited
US2673064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |