US3299156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrocyclization catalyst and process
Assignee: Dow Chemical Co
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Filing: 1963-06-21
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Granted: 1967-01-17
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Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ashley Jimmy Dwayne
- 👤 Jr Theodore August Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:26
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/866; B01J23/83; C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/415; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
37 words
A PROCESS FOR THE PREPARATION OF AROMATIC HYDROCARBONS WHICH COMPRISES CONTACTING A NON-AROMATIC HYDROCARBON FEED OF FROM 6 TO 7 CARBON ATOMS WITH A CATALYST CONTAINING A MIXTURE OF BOTH CERIUM AND NICKEL ON AN ALUMINA SUPPORT.
Claim 2
Dependent Claim
37 words
A PROCESS FOR THE PREPARATION OF AROMATIC HYDROCARBONS WHICH COMPRISES CONTACTING A NON-AROMATIC HYDROCARBON FEED OF FROM 6 TO 7 CARBON ATOMS WITH A CATALYST CONTAINING A MIXTURE OF BOTH CERIUM AND NICKEL ON AN ALUMINA SUPPORT.
Claim 3
Dependent Claim
39 words
A DEHYDROGENATION-CYCLIZATION CATALYST WHICH CONTAINS A MIXTURE OF CERIUM AND NICKEL OXIDES EACH IN APPROXIMATELY EQUAL AMOUNTS IN A RANGE OF FROM ABOUT .25 TO ABOUT 3% BY WEIGHT, BASED ON THE TOTAL CATALYST WEIGHT ON A GAMMA-ALUMINA SUPPORT.
Claim 4
Dependent Claim
39 words
A DEHYDROGENATION-CYCLIZATION CATALYST WHICH CONTAINS A MIXTURE OF CERIUM AND NICKEL OXIDES EACH IN APPROXIMATELY EQUAL AMOUNTS IN A RANGE OF FROM ABOUT .25 TO ABOUT 3% BY WEIGHT, BASED ON THE TOTAL CATALYST WEIGHT ON A GAMMA-ALUMINA SUPPORT.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |