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US2833411A
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Separating apparatus with constant flow rate control
Assignee: Stamicarbon BV
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Filing: 1953-10-14
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Granted: 1958-05-06
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Expires: 1973-10-14
Abstract
No abstract record available.
Inventors
- 👤 Bosman Michiel
- 👤 Jozef M H Beckers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:12
CPC Classifications
B; B03; B03B; B03B13/00; B03B13/005; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR387882A
Cited
FR543605A
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US1851422A
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US2345513A
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US2382853A
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US2409768A
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US2474774A
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US2646169A
Cited
US2633863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |