US1367250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for raising sunken vessels
Assignee: Individual
•
Filing: 1919-02-15
•
Granted: 1921-02-01
•
Expires: 1939-02-15
Abstract
No abstract record available.
Inventors
- 👤 Howard A Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/28; B63C7/06; B63C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-02-01 | 1924-08-02 | 1925-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-01 | 1928-08-02 | 1929-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-01 | 1932-08-02 | 1933-02-01 | $7700.00 | Window Closed / Lapsed |