US2912106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic separator
Assignee: Magni Power Co
•
Filing: 1956-09-11
•
Granted: 1959-11-10
•
Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Martin
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; B03C1/025; B03C1/031; B03C1/033; B03C1/0332
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US79849A
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US384035A
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US738331A
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US1425235A
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US1466310A
Cited
FR643237A
Cited
US2331769A
Cited
DE870532C
Cited
GB748855A
Cited
US2834359A
Cited
US2792115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |