US2557016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual-purpose self-unloader ship
Assignee: Individual
•
Filing: 1945-08-10
•
Granted: 1951-06-12
•
Expires: 1965-08-10
Abstract
No abstract record available.
Inventors
- 👤 Smith Alva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:36
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636774A
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US700789A
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US782485A
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US1466854A
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US1603558A
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US1708176A
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US1942839A
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US1869970A
Cited
US2214736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |