US3562342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization of alkyl aromatics
Assignee: Texaco Inc
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Filing: 1968-11-27
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Granted: 1971-02-09
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Expires: 1988-11-27
Abstract
Abstract A PROCESS FOR THE ISOMERIZATION OF ALKYL AROMATIC STREAMS UNDER HYDROISOMERIZATION CONDITIONS USING A CATALYST COMPRISING NICKEL AND TUNGSTEN AS THE METALS OR SULFIDES, AND A MIXTURE OF A DECATIONIZED CRYSTALLINE ZEOLITE AND AN AMORPHOUS INORGANIC OXIDE.
Inventors
- 👤 Gayle P Hebert
- 👤 Jerry C Perciful
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2713; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/076; C07C5/2724; Y; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
Total Claims: 0
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |