Patent US2214206A successfully refreshed from Google Patents.
US2214206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating soluble ores by hindered settling separation
Assignee: PACIFIC COAST BORAX Co
•
Filing: 1938-10-15
•
Granted: 1940-09-10
•
Expires: 1958-10-15
Abstract
No abstract record available.
Inventors
- 👤 John P Rasor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:43
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/04; C01D3/08
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) | 1943-09-10 | 1944-03-11 | 1944-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-10 | 1948-03-11 | 1948-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-10 | 1952-03-11 | 1952-09-10 | $7700.00 | Window Closed / Lapsed |