Patent US2210747A successfully refreshed from Google Patents.
Patent FR831803A successfully refreshed from Google Patents.
Patent US3268414A successfully refreshed from Google Patents.
US3268414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cultivating micro-organisms on heavy distillate fraction containing straight-chain hydrocarbons
Assignee: BP PLC
•
Filing: 1964-11-03
•
Granted: 1966-08-23
•
Expires: 1984-11-03
Abstract
No abstract record available.
Inventors
- 👤 Laine Bernard Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:18
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/26; C12N1/28; C10; C10G; C10G32/00; C10G73/00; C10G73/02; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/17; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/921; Y10S435/923; Y10S435/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS WHICH COMPRISES DISTILLING A PETROLEUM FRACTION TO OBTAIN AT LEAST TWO DISTILLATE FRACTIONS COMPRISING A HEAVY DISTILLATE FRACTION CONTAINING STRAIGHT-CHAIN HYDROCARBONS AND A LIGHT DISTILLATE FRACTION CONTAINING STRAIGHT-CHAIN HYDROCARBONS OF A LIGHTER NATURE THAN THOSE CONTAINED IN THE HEAVY DISTILLATE FRACTION, THEREAFTER TREATING THE SAID HEAVY DISTILLATE FRACTION WITH A MICRO-ORGANISM IN THE PRESENCE OF AN AQUEOUS NUTRIENT MEDIUM AND IN THE PRESENCE OF A GAS CONTAINING FREE OXYGEN WHEREBY SAID MICRO-ORGANISM GROWS USING AS FEEDSTOCK, STRAIGHTCHAIN HYDROCARBONS CONTAINED IN SAID HEAVY DISTILLATE FRACTION, THEREAFTER SEPARATING THE TREATED HEAVY DISTILLATE FRACTION, AND BLENDING THE TREATED HEAVY DISTILLATE FRACTION WITH THE UNTREATED DISTILLATED FRACTION.
Claim 2
Dependent Claim
105 words
A PROCESS WHICH COMPRISES DISTILLING A PETROLEUM FRACTION TO OBTAIN AT LEAST TWO DISTILLATE FRACTIONS COMPRISING A HEAVY DISTILLATE FRACTION CONTAINING STRAIGHT-CHAIN HYDROCARBONS AND A LIGHT DISTILLATE FRACTION CONTAINING STRAIGHT-CHAIN HYDROCARBONS OF A LIGHTER NATURE THAN THOSE CONTAINED IN THE HEAVY DISTILLATE FRACTION, THEREAFTER TREATING THE SAID HEAVY DISTILLATE FRACTION WITH A MICRO-ORGANISM IN THE PRESENCE OF AN AQUEOUS NUTRIENT MEDIUM AND IN THE PRESENCE OF A GAS CONTAINING FREE OXYGEN WHEREBY SAID MICRO-ORGANISM GROWS USING AS FEEDSTOCK, STRAIGHTCHAIN HYDROCARBONS CONTAINED IN SAID HEAVY DISTILLATE FRACTION, THEREAFTER SEPARATING THE TREATED HEAVY DISTILLATE FRACTION, AND BLENDING THE TREATED HEAVY DISTILLATE FRACTION WITH THE UNTREATED DISTILLATED FRACTION.
References Cited (Backward Citations)
US2697061A
Cited
US3186922A
Cited
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 |