US3706807A
Expired / Lapsed
US
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Preparation of alkyl-substituted phenols
Assignee: Mobil Oil AS
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Filing: 1969-03-20
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Granted: 1972-12-19
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Expires: 1989-03-20
Abstract
Abstract A METHOD OF PREPARING AN ALKYL-SUBSTITUTED PHENOL WHICH COMPRISES CONTACTING A PHENOL WITH AN ORGANIC COMPOUND HAVING AN AVAILABLE ALKYL GROUP IN THE PRESENCE OF A CATALYTICALLY-ACTIVE ZSM-4 ZEOLITE
Inventors
- 👤 Robert W Etherington Jr
- 👤 Warren W Kaeding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:56
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/48; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7011
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |