US3780131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isoparaffin alkylation with a lighter olefin and subsequently with a heavier olefin
Assignee: Universal Oil Products Co
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Filing: 1972-07-07
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Granted: 1973-12-18
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Expires: 1992-07-07
Abstract
Abstract A PROCESS FOR ALKYLATING AN ISOPARAFFIN WITH A LIGHTER OLEFIN AND A HEAVIER OLEFIN BY CONTACTING THE ISOPARAFFIN WITH THE LIGHTER OLEFIN AND A FIRST ALKYLATION CATALYST IN A FIRST ALKYLATION ZONE, CONTACTING THE HYDROCARBON EFFLUENT FROM THE FIRST ALKYLATION ZONE WITH THE HEAVIER OLEFIN AND A SECOND ALKYLATION CATALYST IN A SECOND ALKYLATION ZONE, AND RECOVERING THE PRODUCT OF THE PROCESS FROM THE HYDROCARBON EFFLUENT FROM THE SECOND ALKYLATION ZONE. D R A W I N G
Inventors
- 👤 J Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:14
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; C07C2529/00; C07C2529/04; C07C2529/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |