Patent US3379310A successfully refreshed from Google Patents.
US3379310A
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US
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Method and apparatus for the wet gravity concentration of ores
Assignee: Mineral Deposits Pty Ltd
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Filing: 1966-08-16
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Granted: 1968-04-23
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Expires: 1986-08-16
Abstract
No abstract record available.
Inventors
- 👤 Reichert Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:40
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/10; B03B5/62; B03B5/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455498A
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US776189A
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US1104969A
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GB100455A
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US2329781A
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US2660305A
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US2644583A
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US2766882A
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US3000502A
Cited
US2966262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |