US3511645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for extracting metals from rocks or ores
Assignee: Bureau de Recherches Géologiques et Minières
•
Filing: 1967-06-08
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Granted: 1970-05-12
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Expires: 1987-06-08
Abstract
No abstract record available.
Inventors
- 👤 Juan C Goni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:29
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/04; C22B3/16; C22B3/1683; C22B3/1691; C22B3/1608; C22B3/1658; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2896930A
Cited
US3091526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |