Patent US2966262A successfully refreshed from Google Patents.
US2966262A
Expired / Lapsed
US
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Method and apparatus for separating ores
Assignee: Hobart Brothers LLC
•
Filing: 1957-07-11
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Granted: 1960-12-27
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Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Edward A Hobart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:18
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US557178A
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US1065563A
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US1696767A
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US2204584A
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US2293228A
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US2265570A
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US2766882A
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US2780356A
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US2872041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |