US3268419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivation of micro-organisms on a feedstock consisting at least in part of a straight chain hydrocarbon
Assignee: BP PLC
•
Filing: 1963-07-24
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Granted: 1966-08-23
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Expires: 1983-07-24
Abstract
No abstract record available.
Inventors
- 👤 Champagnat Alfred
- 👤 Laine Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/64; C12P7/6436; C12P7/6445; C12P7/6463; A; A23; A23J; A23J1/00; A23J1/18; C10; C10G; C10G32/00; C12N; C12N1/00; C12N1/005; C12N1/02; C12N1/26; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/911; Y10S435/921; Y10S435/923; Y10S435/933; Y10S435/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PROCESS WHICH COMPRISES CULTIVATING A STRAIGHT CHAIN HYDROCARBON-CONSUMING MICRO-ORGANISM SELECTED FROM THE GROUP CONSISTING OF YEASTS, BACTERIA OF THE ORDERS PSEUDOMONADALES, EUBACTERIALS AND ACTINOMYCETALES; AND PENCILLIUM EXPANSUM IN THE PRESENCE OF A FEEDSTOCK CONSISTING AT LEAST IN PART OF A STRAIGHT CHAIN HYDROCARBON, SEPARATING FROM THE TREATED FEEDSTOCK A FRACTION COMPRISING THE MICRO-ORGANISM AND AQUEOUS MEDIUM, REDUCING THE PROPORTION OF WATER IN SAID FRACTION BY SOLVENT EXTRACTION USING A POLAR SOLVENT AND THEREAFTER SUBJECTING THE RAFFINATE, CONTAINING THE MICRO-ORGANISM AND A REDUCED PROPORTION OF AQUEOUS MEDIUM SO OBTAINED TO SOLVENT EXTRACTION WITH A SOLVENT CONTAINING IN MAJOR AMOUNT A HYDROCARBON THE AFOREMENTIONED SOLVENT EXTRACTION TREATMENT OF THE RAFFINATE BEING A PURIFICATION STEP TO REDUCE UNDESIRABLE CONTAIMIANT PRESENT THEREIN.
Claim 2
Dependent Claim
119 words
A PROCESS WHICH COMPRISES CULTIVATING A STRAIGHT CHAIN HYDROCARBON-CONSUMING MICRO-ORGANISM SELECTED FROM THE GROUP CONSISTING OF YEASTS, BACTERIA OF THE ORDERS PSEUDOMONADALES, EUBACTERIALS AND ACTINOMYCETALES; AND PENCILLIUM EXPANSUM IN THE PRESENCE OF A FEEDSTOCK CONSISTING AT LEAST IN PART OF A STRAIGHT CHAIN HYDROCARBON, SEPARATING FROM THE TREATED FEEDSTOCK A FRACTION COMPRISING THE MICRO-ORGANISM AND AQUEOUS MEDIUM, REDUCING THE PROPORTION OF WATER IN SAID FRACTION BY SOLVENT EXTRACTION USING A POLAR SOLVENT AND THEREAFTER SUBJECTING THE RAFFINATE, CONTAINING THE MICRO-ORGANISM AND A REDUCED PROPORTION OF AQUEOUS MEDIUM SO OBTAINED TO SOLVENT EXTRACTION WITH A SOLVENT CONTAINING IN MAJOR AMOUNT A HYDROCARBON THE AFOREMENTIONED SOLVENT EXTRACTION TREATMENT OF THE RAFFINATE BEING A PURIFICATION STEP TO REDUCE UNDESIRABLE CONTAIMIANT PRESENT THEREIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |