US2508723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrocarbons
Assignee: Phillips Petroleum Co
•
Filing: 1948-01-02
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Granted: 1950-05-23
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Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 Bertrand J Mayland
- 👤 Ruehlen Forrest Nolan
- 👤 Edward E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:40
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/12; C10G21/18; C07; C07C; C07C7/00; C07C7/04; C07C7/05; C07C7/08; C07C7/10; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR SEPARATING ONE HYDROCARBON FROM AN ADMIXTURE F HYDROCARBONS HAVING BOILING POINTS CLOSE TO EACH OTHER WHERE SAID HYDROCARBONS ARE OF DIFFERENT TYPES, SAID HYDROCARBONS BEING SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, CYCLOPARAFFINS, OLEFINS, DIOLEFINS AND AROMATICS, COMPRISING MIXING SAID ADMIXTURE OF CLOSE BOILING HYDROCARBONS WITH DIETHYLENE GLYCOLBIS-CHLOROFORMATE, SEPARATING THIS MIXTURE INTO TWO PHASES AND RECOVERING AT LEAST ONE OF SAID CLOSE BOILING HYDROCARBONS FROM ONE OF SAID PHASES.
Claim 2
Dependent Claim
72 words
A PROCESS FOR SEPARATING ONE HYDROCARBON FROM AN ADMIXTURE F HYDROCARBONS HAVING BOILING POINTS CLOSE TO EACH OTHER WHERE SAID HYDROCARBONS ARE OF DIFFERENT TYPES, SAID HYDROCARBONS BEING SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, CYCLOPARAFFINS, OLEFINS, DIOLEFINS AND AROMATICS, COMPRISING MIXING SAID ADMIXTURE OF CLOSE BOILING HYDROCARBONS WITH DIETHYLENE GLYCOLBIS-CHLOROFORMATE, SEPARATING THIS MIXTURE INTO TWO PHASES AND RECOVERING AT LEAST ONE OF SAID CLOSE BOILING HYDROCARBONS FROM ONE OF SAID PHASES.
References Cited (Backward Citations)
US1908018A
Cited
US2064338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |