Patent US3059774A successfully refreshed from Google Patents.
US3059774A
Expired / Lapsed
US
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Method and means for beneficiating ores
Assignee: US Borax Inc
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Filing: 1961-07-31
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Granted: 1962-10-23
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Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Wilson Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:03
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D1/01; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04; B03D2203/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904462A
Cited
US1904461A
Cited
US2381662A
Cited
US2420476A
Cited
FR1011166A
Cited
US3016143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |