US2904607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of aromatics
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-01-29
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Granted: 1959-09-15
•
Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Mattox William Judson
- 👤 Jr William Floyd Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C07C2529/00; C07C2529/04; C07C2529/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR ALKYLATING AN AROMATIC HYDROCARBON WITH AN OLEFIN WHICH COMPRISE CONTACTING THE SAME IN THE PRESENCE OF A CRYSTALLINE METALLIC ALUMINO-SILICATE HAVING A UNIFORM PORE OPENING OF ABOUT 6 TO 15 ANGSTROM UNITS AT A TEMPERATURE OF FROM ABOUT 300* TO 850*F.
Claim 2
Dependent Claim
44 words
A PROCESS FOR ALKYLATING AN AROMATIC HYDROCARBON WITH AN OLEFIN WHICH COMPRISE CONTACTING THE SAME IN THE PRESENCE OF A CRYSTALLINE METALLIC ALUMINO-SILICATE HAVING A UNIFORM PORE OPENING OF ABOUT 6 TO 15 ANGSTROM UNITS AT A TEMPERATURE OF FROM ABOUT 300* TO 850*F.
References Cited (Backward Citations)
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US2253285A
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US2294779A
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Cited
US2698305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |