US2894472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating dry docks
Assignee: Individual
•
Filing: 1957-01-09
•
Granted: 1959-07-14
•
Expires: 1977-01-09
Abstract
No abstract record available.
Inventors
- 👤 Christopher J Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:15
CPC Classifications
B; B63; B63C; B63C1/00; B63C1/02; B63B; B63B71/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |