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US3446357A
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US
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Clarifying vessel for liquids
Assignee: D'etudes Pour Le Traitement Et L'utilisation Des Eaux Setude soc
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Filing: 1967-08-29
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Granted: 1969-05-27
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Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Cyril Gomella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:10
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281; B; B01; B01D; B01D21/00; B01D21/01; B01D21/24; B01D21/2488; B01D21/26; B01D21/267; B01D24/00; B01D24/36; B01D24/46; B01D24/4668; B01D24/4678; B01D24/4689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585808A
Cited
US2948400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |