US1310384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating and recovering by-products from acid mine-water
Assignee: —
•
Filing: —
•
Granted: 1919-07-15
•
Expires: 1936-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:35
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/009; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62
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) | 1922-07-14 | 1923-01-13 | 1923-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-07-14 | 1927-01-13 | 1927-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-07-14 | 1931-01-13 | 1931-07-15 | $7700.00 | Window Closed / Lapsed |