US3433629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering manganese from manganese ores
Assignee: Individual
•
Filing: 1965-09-09
•
Granted: 1969-03-18
•
Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 Kazutami Imai
- 👤 Tatsuo Tano
- 👤 Hiroo Noro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:35
CPC Classifications
C; C22; C22B; C22B47/00; C01; C01G; C01G45/00; C01G45/10; C12; C12P; C12P3/00; C22B3/00; C22B3/18; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2829964A
Cited
US3266889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |