US4016076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of emulsions
Assignee: D'ETUDES ET DE REALISATIONS INDUSTRIELLES Ste
•
Filing: 1974-03-21
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Granted: 1977-04-05
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Expires: 1994-03-21
Abstract
Abstract In order to effect the separation of two liquids, particularly two liquids in the form of an emulsion, one of the liquids, the dispersed component of the emulsion, is concentrated in the form of an emulsion which is inverted with respect to the initial emulsion, i.e. is an emulsion of the previously dispersing component in the previously dispersed component. Thereafter the inverted emulsion can be separated off from the remainder of the initial mixture. Chemical agents and agitation may be employed to promote the formation of the inverted emulsion. The process is especially applicable to oil-in-water emulsions known as soluble oils.
Inventors
- 👤 Antoine Augustin Jose Lefeuvre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D17/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |