Patent US2584976A successfully refreshed from Google Patents.
US2584976A
Expired / Lapsed
US
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Apparatus for concentrating ores and the like
Assignee: Mining Process and Patent Co
•
Filing: 1947-08-08
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Granted: 1952-02-12
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Expires: 1967-08-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas S Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
B; B07; B07B; B07B7/00; B07B7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US694420A
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US1483371A
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US1698101A
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AU1919734A
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US2214905A
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US2431559A
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US2431560A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |