US3148158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing acid activated clay catalyst
Assignee: GAF Chemicals Corp
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Filing: 1961-12-29
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Granted: 1964-09-08
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Leslie M Schenck
- 👤 Kaplan Harry
- 👤 John A Hodgkiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:42
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; C; C07; C07C; C07C37/00; C07C37/11; C07C37/14; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS OF PREPARING ANACIDIC CLAY CATALYST OF THE SILICA-ALUMINA TYPE HAVING ACTIVITY IN THE ALKYLATION OF PHENOLIC COMPOUNDS WHICH COMPRISES TREATING 1 PART BY WEIGHT OF A RAW CLAY OF THE SILICA-ALUMINA TYPE IN THE PRESENCE OF FROM 1 TO 5 PARTS BY WEIGHT OF AN INERT ORGANIC COMPOUND FREE FROM BASIC SUBSTITUENTS AS A DILUENT, 0.01 TO 1 PART BY WEIGHT OF WATER AND FROM ABOUT 0.01 TO 1 PART BY WEIGHT OF A HYDROLYZABLE HALIDE AT A TEMPERATURE RANGING FROM AMBIENT TO 130*C.
Claim 2
Dependent Claim
86 words
THE PROCESS OF PREPARING ANACIDIC CLAY CATALYST OF THE SILICA-ALUMINA TYPE HAVING ACTIVITY IN THE ALKYLATION OF PHENOLIC COMPOUNDS WHICH COMPRISES TREATING 1 PART BY WEIGHT OF A RAW CLAY OF THE SILICA-ALUMINA TYPE IN THE PRESENCE OF FROM 1 TO 5 PARTS BY WEIGHT OF AN INERT ORGANIC COMPOUND FREE FROM BASIC SUBSTITUENTS AS A DILUENT, 0.01 TO 1 PART BY WEIGHT OF WATER AND FROM ABOUT 0.01 TO 1 PART BY WEIGHT OF A HYDROLYZABLE HALIDE AT A TEMPERATURE RANGING FROM AMBIENT TO 130*C.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |