US3663430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon dewaxing with a mordenite-type alumino-silicate
Assignee: Texaco Inc
•
Filing: 1967-12-22
•
Granted: 1972-05-16
•
Expires: 1987-12-22
Abstract
Abstract HYDROCARBON FEEDSTOCK CONTAININGF WAX-LIKE MATERIALS ARE DEWAXED IN THE PRESENCE OF A MORDENITE-TYPE CYRSTALLINE ALUMINO-SILICATE IN HYDROGEN FORM HAVING A SILICA TO ALUMINA MOLE RATIO GREATER THAN ABOUT 10 OT1. A CATALYTIC MATERIAL, CONTAINING EITHER A GROUP VIII OR A GROUP VI-B METAL, ASSOCIATED WITH THE ZEOLITE PROVIDES INCREASED ACTIVITY AND LONGER CATALYST LIFE. D R A W I N G
Inventors
- 👤 Herbert C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:00
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; B01J2229/00; B01J2229/10; B01J2229/16; C10G2400/00; C10G2400/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |