US2497959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol process
Assignee: —
•
Filing: —
•
Granted: 1950-02-21
•
Expires: 1967-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/02; C07C31/125; C07C29/00; C07C29/09; C07C29/12; C07C11/00; C07C11/02; C07C29/03; C07C29/04; C07C303/00; C07C303/24; C07C31/12; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS OF PRODUCING A STRONG ACID LIQUOR EXTRACT BY THE ABSORPTION OF AN ISOMEROUS MONOOLEFINIC HYDROCARBON MIXTURE CONTAINING PREDOMINANTLY NORMAL OLEFINS AND TERTIARY BASE OLEFINS IN A STRONG ACID WITHOUT SUBSTANTIAL POLYMERIZATION OF THE TERITIARY BASE OLEFINS WHICH COMPRISES ADJUSTING THE RATIO OF NORMAL OLEFINS TO TERTIARY BASE OLEFINS PRESENT IN THE ISOMEROUS MONO-OLEFINIC HYDROCARBON MIXTURE TO A RATIO OF 2.5 TO 10:1 AND CONTACTING THE HYDROCARBON MIXTURE CONTAINING OLEFINS IN SAID RATIO WITH A STRONG ACID EXTRACT OF AT LEAST UNIT SATURATION PREPARED BY ABSORBING THE EQUIVALENT OF AT LEAST ONE MOL OF ISOMEROUS NORMAL MONO-OLEFIN PER MOL OF ACID.
Claim 2
Dependent Claim
102 words
A PROCESS OF PRODUCING A STRONG ACID LIQUOR EXTRACT BY THE ABSORPTION OF AN ISOMEROUS MONOOLEFINIC HYDROCARBON MIXTURE CONTAINING PREDOMINANTLY NORMAL OLEFINS AND TERTIARY BASE OLEFINS IN A STRONG ACID WITHOUT SUBSTANTIAL POLYMERIZATION OF THE TERITIARY BASE OLEFINS WHICH COMPRISES ADJUSTING THE RATIO OF NORMAL OLEFINS TO TERTIARY BASE OLEFINS PRESENT IN THE ISOMEROUS MONO-OLEFINIC HYDROCARBON MIXTURE TO A RATIO OF 2.5 TO 10:1 AND CONTACTING THE HYDROCARBON MIXTURE CONTAINING OLEFINS IN SAID RATIO WITH A STRONG ACID EXTRACT OF AT LEAST UNIT SATURATION PREPARED BY ABSORBING THE EQUIVALENT OF AT LEAST ONE MOL OF ISOMEROUS NORMAL MONO-OLEFIN PER MOL OF ACID.
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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |