US2132800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for recovering submarine deposits
Assignee: Individual
•
Filing: 1938-01-06
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Granted: 1938-10-11
•
Expires: 1958-01-06
Abstract
No abstract record available.
Inventors
- 👤 Harry A Payton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:14
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F3/9206; E02F5/00; E02F5/28; E02F5/287; E02F7/00; E02F7/005; E21; E21B; E21B43/00; E21B43/01; E21B43/0122; E21C; E21C50/00
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) | 1941-10-10 | 1942-04-11 | 1942-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-10 | 1946-04-11 | 1946-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-10 | 1950-04-11 | 1950-10-11 | $7700.00 | Window Closed / Lapsed |