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Patent US2591122A successfully refreshed from Google Patents.
US2591122A
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Crossbelt magnetic separator
Assignee: DINGS MAGNETIC SEPARATOR Co
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Filing: 1947-12-03
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Granted: 1952-04-01
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Expires: 1967-12-03
Abstract
No abstract record available.
Inventors
- 👤 Karl A Blind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:57
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16; B03C1/18; B03C1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US825672A
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US1303397A
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US1310802A
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US1366979A
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US1490792A
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US1522343A
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GB309950A
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US1956760A
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US2511484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |