US2572019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for alkylating aromatic compounds using a metal molybdite catalyst
Assignee: EIDP Inc
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Filing: 1950-06-30
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Granted: 1951-10-23
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Frank S Fawcett
- 👤 Benjamin W Howk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:29
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/18; C07C41/30; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C37/00; C07C37/11; C07C37/14; C07C2523/00; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/883; C07C2523/885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS FOR THE CATALYTIC ALKYLATION OF AN AROMATIC COMPOUND WHICH COMPRISES CONTACTING THE AROMATIC COMPOUND WITH AN OLEFIN AT A TEMPERATURE OF 50* TO 500* C. AND IN THE PRESENCE OF A MOLYBDITE OF A METAL WHOSE IONS ARE SOLUBLE IN EXCESS AQUEOUS AMMONIA.
Claim 2
Dependent Claim
45 words
A PROCESS FOR THE CATALYTIC ALKYLATION OF AN AROMATIC COMPOUND WHICH COMPRISES CONTACTING THE AROMATIC COMPOUND WITH AN OLEFIN AT A TEMPERATURE OF 50* TO 500* C. AND IN THE PRESENCE OF A MOLYBDITE OF A METAL WHOSE IONS ARE SOLUBLE IN EXCESS AQUEOUS AMMONIA.
References Cited (Backward Citations)
US2077421A
Cited
US2510937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |