US3133122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing phenols
Assignee: Individual
•
Filing: 1960-07-22
•
Granted: 1964-05-12
•
Expires: 1980-07-22
Abstract
No abstract record available.
Inventors
- 👤 Dundee Ben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:06
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD OF PRODUCING A PHENOL FROM AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE, TOLUENE AND MIXTURES OF BENZENE AND TOLUENE WHICH COMPRISES PASSING A PREHEATED MIXTURE OF THE AROMATIC COMPOUND IN GASEOUS FORM AND AN OXYGEN CONTAINING GAS UNDER PRESSURE OF AT LEAST ABOUT ONE ATMOSPHERE THROUGH A FLUID BED OF FINELY DIVIDED NONCATALYTIC, NONREACTIVE SOLID MATERIAL, THE TEMPERATURE OF THE GASES AS THEY LEAVE THE BED AND THE AMOUNT OF OXYGEN PRESENT THEREIN BEING EFFECTIVE TO PRODUCE A FLAME WITH A TEMPERATURE UP TO 750*C., SAID FLAME BEING IMMEDIATELY ABOVE AND CONTIGUOUS TO SAID BED, THE TEMPERATURE IN THE BED BEING MAINTAINED ABOUT 100*C. BELOW THE TEMPERATURE ABOVE THE BED WHEREBY A PHENOL IS FORMED, AND SEPARATING THE PHENOL.
Claim 2
Independent Claim
124 words
THE METHOD OF PRODUCING A PHENOL FROM AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE, TOLUENE AND MIXTURES OF BENZENE AND TOLUENE WHICH COMPRISES PASSING A PREHEATED MIXTURE OF THE AROMATIC COMPOUND IN GASEOUS FORM AND AN OXYGEN CONTAINING GAS UNDER PRESSURE OF AT LEAST ABOUT ONE ATMOSPHERE THROUGH A FLUID BED OF FINELY DIVIDED NONCATALYTIC, NONREACTIVE SOLID MATERIAL, THE TEMPERATURE OF THE GASES AS THEY LEAVE THE BED AND THE AMOUNT OF OXYGEN PRESENT THEREIN BEING EFFECTIVE TO PRODUCE A FLAME WITH A TEMPERATURE UP TO 750*C., SAID FLAME BEING IMMEDIATELY ABOVE AND CONTIGUOUS TO SAID BED, THE TEMPERATURE IN THE BED BEING MAINTAINED ABOUT 100*C. BELOW THE TEMPERATURE ABOVE THE BED WHEREBY A PHENOL IS FORMED, AND SEPARATING THE PHENOL.
References Cited (Backward Citations)
US2223383A
Cited
US2373008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |