US2987533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum alkylsesquichloride preparation
Assignee: Shell USA Inc
•
Filing: 1957-10-29
•
Granted: 1961-06-06
•
Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 King Ralph William
- 👤 Movsovic David Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/004; C09D17/005; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/064
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
THE PROCESS FOR PREPARING ALUMINUM ALKYL SESQUICHLORIDE HAVING FROM 8 TO 10 CARBON ATOMS COMPRISING MIXING TOGETHER ALUMINUM A MINOR AMOUNT OF AN ALUMINUM ALKY SELECTED FROM THE GROUP CONSISTING OF TRIETHYL ALUMINUM AND DIETHYL ALUMINUM CHLORIDE AND A MINOR AMOUNT OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF IODINE AND BROMINE, THEREAFTER HEATING THE MIXTURE TO A TEMPERATURE BETWEEN 120-150*C. AND THEN ADDING AN ALKYL HALIDE HAVING FROM 8 TO 10 CARBON ATOMS AND REACTING THE MIXTURE AT TEMPERATURES BETWEEN 120150*C.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |