US3701713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent removal from micro-organisms
Assignee: BP PLC
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Filing: 1969-10-16
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Granted: 1972-10-31
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Expires: 1989-10-16
Abstract
Abstract A METHOD FOR REMOVING SOLVENT FROM A MICRO-ORGANISM CONTAINING FERMENTATION PRODUCT WHICH HAS BEEN PRODUCED BY CULTIVATING A MICRO-ORGANISM IN THE PRESENCE OF A HYDROCARBON AND SUBJECTING THE CULTIVATED MICRO-ORGANISM TO A SOLVENT EXTRACTION TREATMENT TO REMOVE RESIDUAL HYDROCARBON. THE METHOD CONSISTING ESSENTIALLY OF PASSING STEAM OVER THE HEATED FERMENTATION PRODUCT IN SUCH A MANNER AS TO MAINTAIN IN THE PRODUCT A CERTAIN MINIMUM WATER CONTENT WHILST THE SOLVENT IS BEING REMOVED.
Inventors
- 👤 Ian Cameron Bennett
- 👤 Jean Amaudric Du Chaffaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:32
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |