Patent US2402649A successfully refreshed from Google Patents.
US2402649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling method and apparatus
Assignee: Mining Process and Patent Co
•
Filing: 1937-01-26
•
Granted: 1946-06-25
•
Expires: 1957-01-26
Abstract
No abstract record available.
Inventors
- 👤 Leland H Logue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:38
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/003; B01D21/0036; B01D21/10; B01D21/12; B01D21/14; B01D21/18; B01D21/186; B01D21/24; B01D21/2427; B01D21/2433
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-06-24 | 1949-12-24 | 1950-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-24 | 1953-12-24 | 1954-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-24 | 1957-12-24 | 1958-06-25 | $7700.00 | Window Closed / Lapsed |