Patent US3479281A successfully refreshed from Google Patents.
US3479281A
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Method and apparatus for the separation of phases by gaseous flotation
Assignee: Saint Gobain Techniques Nouvelles SA
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Filing: 1967-10-13
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Granted: 1969-11-18
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Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 Tivadar Kikindai
- 👤 Jean Loup Burgaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:48
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0205; B01D17/06; B03; B03D; B03D1/00; B03D1/14; B03D1/1437; B03D1/1443; B03D1/1462; B03D1/1493; B03D1/24; B03D1/245; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1069169A
Cited
US1344127A
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US1619036A
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US2335209A
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US2695710A
Cited
US3347786A
Cited
US3301779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |