US3833678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable and pumpable liquid aluminum chloride and bromide complexes
Assignee: Mobil Oil AS
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Filing: 1972-09-08
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Granted: 1974-09-03
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Expires: 1992-09-08
Abstract
Abstract SOLUTIONS OF ALUMINUM CHLORIDE OR ALUMINUM BROMIDE, IN MOLAR EXCESS, IN METHYL ESTERS IF CERTAIN NORMAL AND BRANCHED-CHAIN ALKANOIC ACIDS REMAIN STABLE AND PUMPABLE AT LEAST 20 DAYS OR MORE. THESE SOLUTIONS ARE USEFUL CATALYSTS FOR REACTIONS, SUCH AS OLEFIN POLYMERIZATION OR ETHYLATION OF ISOBUTANE, AND CAN BE RECOVERED AND RECYCLED.
Inventors
- 👤 J Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:06
CPC Classifications
C; C08; C08F; C08F10/00; B; B01; B01J; B01J27/00; B01J27/06; B01J27/125; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/26
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |