US2688044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation of aromatic compounds with unsaturated organic compounds in the presence of mixed catalysts
Assignee: Universal Oil Products Co
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Filing: 1951-04-04
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Granted: 1954-08-31
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Vladimir N Ipatieff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:01
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/72; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS WHICH COMPRISES REACTING A NONCONJUGATED OLEFINIC HYDROCARBON AND AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AROMATIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A NUCLEAR CARBON ATOM A CARBON ATOM OF A HYDROCARBON GROUP SELECTED FROM THE GROUP CONSISTINGT OF AN ALKYL GROUP, A CYCLOALKYL GROUP, A CYCLOALKALKYL GROUP, AND AN ARALKYL GROUP AND TO WHICH LAST NAMED CARBON ATOM IS ATTACHED AT LEAST ONE HYDROGEN ATOM, THE PROCESS BEING CARRIED OUT AT CONDENSATION CONDITIONS IN THE PRESENCE OF AN ALKALI METAL AND OF A HETEROCYCLIC COMPOUND DIFFERENT FROM THE AFORESAID AROMATIC REACTANT AND CONTAINING A RING CONSISTING OF A NITROGEN ATOM AND AT LEAST 4 BUT NOT MORE THAN 5 CARBON ATOMS, AND RECOVERING THE RESULTANT CONDENSATION PRODUCT.
Claim 2
Dependent Claim
125 words
A PROCESS WHICH COMPRISES REACTING A NONCONJUGATED OLEFINIC HYDROCARBON AND AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AROMATIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A NUCLEAR CARBON ATOM A CARBON ATOM OF A HYDROCARBON GROUP SELECTED FROM THE GROUP CONSISTINGT OF AN ALKYL GROUP, A CYCLOALKYL GROUP, A CYCLOALKALKYL GROUP, AND AN ARALKYL GROUP AND TO WHICH LAST NAMED CARBON ATOM IS ATTACHED AT LEAST ONE HYDROGEN ATOM, THE PROCESS BEING CARRIED OUT AT CONDENSATION CONDITIONS IN THE PRESENCE OF AN ALKALI METAL AND OF A HETEROCYCLIC COMPOUND DIFFERENT FROM THE AFORESAID AROMATIC REACTANT AND CONTAINING A RING CONSISTING OF A NITROGEN ATOM AND AT LEAST 4 BUT NOT MORE THAN 5 CARBON ATOMS, AND RECOVERING THE RESULTANT CONDENSATION PRODUCT.
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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |