US3763270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation in liquid medium with hydrogen chloride and free radical generating compound
Assignee: Universal Oil Products Co
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Filing: 1971-12-27
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Granted: 1973-10-02
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Expires: 1991-12-27
Abstract
Abstract GASEOUS ALKYLATED HYDROCARBONS MAY BE ALKYLATED WITH AN OLEFINIC HYDROCARBON BY EFFECTING THE REACTION IN THE PRESENCE OF A HYDROGEN CHLORIDE COMPOUND AND A CATALYST COMPRISING A FREE RADICAL GENERATING COMPOUND AT A TEMPERATURE AT LEAST AS HIGH AS THE DECOMPOSITION TEMPERATURE OF THE CATALYST, SAID REACTION ALSO BEING EFFECTED IN A LIQUID SATURATED HYDROCARBON MEDIUM.
Inventors
- 👤 L Schmerling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:34
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2521/00; C07C2521/02; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/055; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/11; C07C2527/20; C07C2527/232; C07C2531/00; C07C2531/02
Claims Analysis
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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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |