US3218267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of catalyst by treatment of alumina with thionyl chloride
Assignee: BP PLC
•
Filing: 1963-06-13
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Granted: 1965-11-16
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Expires: 1983-06-13
Abstract
No abstract record available.
Inventors
- 👤 Goble Anthony George
- 👤 Haresnape John Norman
- 👤 O'may Thomas Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:12
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J37/00; B01J37/22; B01J37/24; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A METHOD OF PREPARING A CATALYST, SUITABLE FOR USE IN HYDROCARBON CONVERSION PROCESES, COMPRISING CONTACTING ALUMINA WITH THIONYL CHLORIDE UNDER NON-REDUCING CONDITIONS AND AT A TEMPERATURE OF FROM 300 TO 1100* F. SUCH TAHT CHLORINE IS TAKEN UP BY THE ALUMINA WITH OUT THE PRODUCTION OF FREE ALUMINIUM CHLORIDE.
Claim 2
Independent Claim
49 words
A METHOD OF PREPARING A CATALYST, SUITABLE FOR USE IN HYDROCARBON CONVERSION PROCESES, COMPRISING CONTACTING ALUMINA WITH THIONYL CHLORIDE UNDER NON-REDUCING CONDITIONS AND AT A TEMPERATURE OF FROM 300 TO 1100* F. SUCH TAHT CHLORINE IS TAKEN UP BY THE ALUMINA WITH OUT THE PRODUCTION OF FREE ALUMINIUM CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |