US2584103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of aromatic hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1949-07-16
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Granted: 1952-02-05
•
Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Vladimir N Ipatieff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/861; B; B01; B01J; B01J27/00; B01J27/06; C07C2/54; C07C2/64; C07C2/66; C07C2/70; C07C2/862; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR PRODUCING ALKYLATED AROMATIC HYDROCARBONS WHICH COMPRISES REACTING AN AROMATIC HYDROCARBON HAVING A REPLACEABLE NUCLEAR HYDROGEN ATOM WITH AN OLEFIN-ACTING COMPOUND AT ALKYLATING CONDITIONS IN THE PRESENCE OF A PREFORMED REACTION PRODUCT OF ALUMINA WITH A HYDROGEN HALIDE, SAID REACTION PRODUCT CONTAINING FROM ABOUT 0.5% TO ABOUT 30% BY WEIGHT OF HALOGEN CHEMICALLY COMBINED WITH THE ALUMINA.
Claim 2
Dependent Claim
59 words
A PROCESS FOR PRODUCING ALKYLATED AROMATIC HYDROCARBONS WHICH COMPRISES REACTING AN AROMATIC HYDROCARBON HAVING A REPLACEABLE NUCLEAR HYDROGEN ATOM WITH AN OLEFIN-ACTING COMPOUND AT ALKYLATING CONDITIONS IN THE PRESENCE OF A PREFORMED REACTION PRODUCT OF ALUMINA WITH A HYDROGEN HALIDE, SAID REACTION PRODUCT CONTAINING FROM ABOUT 0.5% TO ABOUT 30% BY WEIGHT OF HALOGEN CHEMICALLY COMBINED WITH THE ALUMINA.
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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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |