Patent DE1276684B successfully refreshed from Google Patents.
US2699870A
Expired / Lapsed
US
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Apparatus for separating solid particles
Assignee: Stamicarbon BV
•
Filing: 1953-07-01
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Granted: 1955-01-18
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Expires: 1973-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jan N J Leeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:55
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B11/00; B03B2011/004; B03B2011/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1285560A
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US2298332A
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US2353152A
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US2463693A
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US2559403A
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US2521152A
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US2653701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |