US2700466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum separator and method of beneficiating minerals
Assignee: WESTERN MACHINERY CORP
•
Filing: 1950-05-25
•
Granted: 1955-01-25
•
Expires: 1970-05-25
Abstract
No abstract record available.
Inventors
- 👤 Leland H Logue
- 👤 Robert S Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:31
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B5/42; B03B11/00; B03B2011/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL33861C
Cited
US515542A
Cited
USRE16674E
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USRE17873E
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US653340A
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US1887239A
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US2203601A
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US2486682A
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US2373635A
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GB584504A
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US2426398A
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US2429436A
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US2487845A
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US2482747A
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US2496703A
Cited
US2521152A
Cited
US2516962A
Cited
US2563332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |