US2661092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless belt magnetic separator
Assignee: DINGS MAGNETIC SEPARATOR Co
•
Filing: 1950-03-08
•
Granted: 1953-12-01
•
Expires: 1970-03-08
Abstract
No abstract record available.
Inventors
- 👤 Stanley G Injeski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:24
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16; B03C1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US574444A
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US636762A
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US1146141A
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US1684305A
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US1876847A
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US2410601A
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US2433575A
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US2422113A
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US2446813A
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US2511484A
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US2564515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |