US2476601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopping holes in hull bottoms below the water line
Assignee: Individual
•
Filing: 1945-05-04
•
Granted: 1949-07-19
•
Expires: 1965-05-04
Abstract
No abstract record available.
Inventors
- 👤 Charles S Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/02; B63B43/10; B63B43/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US5845A
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US503079A
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US533280A
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US1195013A
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US1249422A
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GB188561A
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US1676395A
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US2313110A
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US2365488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |