US2536908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salvage boat
Assignee: Individual
•
Filing: 1947-04-07
•
Granted: 1951-01-02
•
Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Chadwick Ernest Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:51
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/28; E; E02; E02B; E02B17/00; E02B2017/0056; E02B2017/0073; E02B2017/0082
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |