US2800230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic separators
Assignee: Individual
•
Filing: 1954-07-14
•
Granted: 1957-07-23
•
Expires: 1974-07-14
Abstract
No abstract record available.
Inventors
- 👤 Thoma Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1806002A
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US2117361A
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US2149764A
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US2452220A
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GB562175A
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US2466839A
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GB584392A
Cited
US2596743A
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US2583522A
Cited
US2597561A
Cited
US2678729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |