US3251897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of aromatic compounds in the presence of an alumino-silicate catalyst
Assignee: ExxonMobil Oil Corp
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Filing: 1962-12-20
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Granted: 1966-05-17
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 John J Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:41
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/861; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J29/085; B01J29/087; B01J29/18; C07C2/54; C07C2/64; C07C2/66; C07C2/862; C07C2/864; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR PRODUCING ALKYLATED ORGANIC COMPOUNDS WHICH COMPRISES EFFECTING REACTION AT A TEMPERATURE NOT IN EXCESS OF 600*F. OF AN ALKYLATING AGENT AND AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS AND AROMATIC HYDROCARB ONS CONTAINING A NON-POLAR SUBSTIUTENT IN THE PERSENCE OF A CATALYST COMPRISING A CRYSTALLINE ALUMINO-SILICATE WHICH CONTAINS CATIONS SELECTED FROMTHE GROUP CONSISTING OF RARE EARTH METALS, HYDROGEN, AND MIXTURES THEREOF, CHARACTERIZED BY AN ACTIVITY CONSTANT OF ABOVE ABOUT 50 AND A UNIFORM PORE SIZE OF AT LEAST ABOUT 6 ANGSTROM UNITS.
Claim 2
Dependent Claim
89 words
A PROCESS FOR PRODUCING ALKYLATED ORGANIC COMPOUNDS WHICH COMPRISES EFFECTING REACTION AT A TEMPERATURE NOT IN EXCESS OF 600*F. OF AN ALKYLATING AGENT AND AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS AND AROMATIC HYDROCARB ONS CONTAINING A NON-POLAR SUBSTIUTENT IN THE PERSENCE OF A CATALYST COMPRISING A CRYSTALLINE ALUMINO-SILICATE WHICH CONTAINS CATIONS SELECTED FROMTHE GROUP CONSISTING OF RARE EARTH METALS, HYDROGEN, AND MIXTURES THEREOF, CHARACTERIZED BY AN ACTIVITY CONSTANT OF ABOVE ABOUT 50 AND A UNIFORM PORE SIZE OF AT LEAST ABOUT 6 ANGSTROM UNITS.
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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |