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Patent US662413A successfully refreshed from Google Patents.
US662413A
Expired / Lapsed
US
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Magnetic separator.
Assignee: THEODORE J MAYER
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Filing: 1900-04-14
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Granted: 1900-11-27
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Expires: 1920-04-14
Abstract
No abstract record available.
Inventors
- 👤 Elmer Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:22
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1903-11-27 | 1904-05-28 | 1904-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-11-27 | 1908-05-28 | 1908-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-11-27 | 1912-05-28 | 1912-11-27 | $7700.00 | Window Closed / Lapsed |