US3116310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for isomerizing secondary alkyl aluminum compounds
Assignee: Gulf Research and Development Co
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Filing: 1960-10-28
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Granted: 1963-12-31
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter P Barie
- 👤 Herbert B Fernald
- 👤 Bernard H Gwynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:39
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR CONVERTING A SECONDARY ALKYL ALUMNINUM COMPOUND TO A PRIMARY ALKYL ALUMINUM COMPOUND WHICH COMPRISES SUBJECTING SAID SECONDARY ALKYL ALUMINUM COMPOUND TO A TEMPERATURE OF ABOUT 150* TO ABOUT 250*C. AND A PRESSURE OF ABOUT 1500 TO ABOUT 3500 POUNDS PER SQUARE INCH GAUGE IN THE PRESENCE OF ABOUT 0.001 TO ABOUT FIVE PERCENT BY WEIGHT OF A SODIUM DISPERSION, WITH THE SODIUM HAVING AN AVERAGE PARTICLE DIAMETER OF ABOUT FIVE TO ABOUT 50 MICRONS.
Claim 2
Dependent Claim
77 words
A PROCESS FOR CONVERTING A SECONDARY ALKYL ALUMNINUM COMPOUND TO A PRIMARY ALKYL ALUMINUM COMPOUND WHICH COMPRISES SUBJECTING SAID SECONDARY ALKYL ALUMINUM COMPOUND TO A TEMPERATURE OF ABOUT 150* TO ABOUT 250*C. AND A PRESSURE OF ABOUT 1500 TO ABOUT 3500 POUNDS PER SQUARE INCH GAUGE IN THE PRESENCE OF ABOUT 0.001 TO ABOUT FIVE PERCENT BY WEIGHT OF A SODIUM DISPERSION, WITH THE SODIUM HAVING AN AVERAGE PARTICLE DIAMETER OF ABOUT FIVE TO ABOUT 50 MICRONS.
References Cited (Backward Citations)
US2740820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |