Patent US3978197A successfully refreshed from Google Patents.
Patent US3230270A successfully refreshed from Google Patents.
US3230270A
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US
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Alkylation of aromatics and catalyst therefor
Assignee: Sinclair Research Inc
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Filing: 1960-08-18
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Granted: 1966-01-18
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Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Stephen M Kovach
- 👤 Glenn O Michaels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:20
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/862; C07C2/864; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/26; C07C2/865; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN THE PROCESS OF ALKYLATING AN ALKYLATABLE AROMATIC HYDROCARBON WITH AN ALKYLATING AGENT COMPRISING CONTACTING THE ALKYLATABLE AROMATIC HYDROCARBON WITH AN ALKYLATING AGENT UNDER ALKYLATION CONDITIONS IN THE PRESENCE OF FREE HYDROGEN AND AN ALKYLATION CATALYST CONSISTING ESSENTIALLY OF A MINOR AMOUNT OF CHROMIA, A MINOR AMOUNT OF BORIA SUFFICIENT TO ENHANCE THE UTILIZATION OF THE ALKYLATING AGENT, AND A MAJOR AMOUNT OF ACTIVATED ALUMINA.
Claim 2
Dependent Claim
65 words
IN THE PROCESS OF ALKYLATING AN ALKYLATABLE AROMATIC HYDROCARBON WITH AN ALKYLATING AGENT COMPRISING CONTACTING THE ALKYLATABLE AROMATIC HYDROCARBON WITH AN ALKYLATING AGENT UNDER ALKYLATION CONDITIONS IN THE PRESENCE OF FREE HYDROGEN AND AN ALKYLATION CATALYST CONSISTING ESSENTIALLY OF A MINOR AMOUNT OF CHROMIA, A MINOR AMOUNT OF BORIA SUFFICIENT TO ENHANCE THE UTILIZATION OF THE ALKYLATING AGENT, AND A MAJOR AMOUNT OF ACTIVATED ALUMINA.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |