US2847962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salvage apparatus
Assignee: DAVID G FREEDMAN
•
Filing: 1954-04-09
•
Granted: 1958-08-19
•
Expires: 1974-04-09
Abstract
No abstract record available.
Inventors
- 👤 Herbert L N Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:11
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/06; B63C7/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US350184A
Cited
US387933A
Cited
US531485A
Cited
US1337250A
Cited
US1293900A
Cited
US1740231A
Cited
US2391326A
Cited
US2508800A
Cited
US2679224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |