US2509486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1946-04-26
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Granted: 1950-05-30
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Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Danforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:51
CPC Classifications
C; C10; C10G; C10G25/00; C07; C07C; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE SEPARATION OF A HYDROCARBON MIXTURE INTO ITS COMPONENT HYDROCARBON CLASSES WHICH COMPRISES PASSING SAID MIXTURE UPWARDLY THROUGH A STATIONARY BED OF ADSORBENT SILICA PARTICLES UNTIL AT LEAST A SUBSTANTIAL PROPORTION OF SAID PARTICLES ARE CONTACTED WITH SAID MIXTURE AND THEREAFTER PASSING INTO SAID ADSORBENT BED FOLLOWING SAID HYDROCARBON MIXTURE, A DESORBING LIQUID TO DISPLACE SAID HYDROCARBONS IN THE ORDER OF THEIR PREFERENTIAL DISPLACEMENT FROM SAID ABSORBENT.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE SEPARATION OF A HYDROCARBON MIXTURE INTO ITS COMPONENT HYDROCARBON CLASSES WHICH COMPRISES PASSING SAID MIXTURE UPWARDLY THROUGH A STATIONARY BED OF ADSORBENT SILICA PARTICLES UNTIL AT LEAST A SUBSTANTIAL PROPORTION OF SAID PARTICLES ARE CONTACTED WITH SAID MIXTURE AND THEREAFTER PASSING INTO SAID ADSORBENT BED FOLLOWING SAID HYDROCARBON MIXTURE, A DESORBING LIQUID TO DISPLACE SAID HYDROCARBONS IN THE ORDER OF THEIR PREFERENTIAL DISPLACEMENT FROM SAID ABSORBENT.
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) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |