Patent US3830724A successfully refreshed from Google Patents.
US3830724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking process
Assignee: Shell USA Inc
•
Filing: 1972-10-19
•
Granted: 1974-08-20
•
Expires: 1992-10-19
Abstract
Abstract A PROCESS FOR HYDROCRACKING A HYDROCARBON FEEDSTOCK BY CONTACTING THE HYDROCARBONS UNDER HYDROCRACKING CONDITIONS AND IN THE PRESENCE OF HYDROGEN WITH A CATALYST HAVING GROUP VIII AND/OR GROUP VI-B METALS INCORPORATED INTO A MIXED ZEOLITE SUPPORT CONSISTING OF CHANNEL PORE STRUCTURE AND THREE-DIMENSIONAL PORE STRUCTURE ZEOLITES OF LOW-ALKALI METAL CONTENT.
Inventors
- 👤 H Schutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:19
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/80; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; C07C5/2767; C07C5/277; C07C5/2791; B01J29/08; B01J29/084; B01J29/60; C10G2400/00; C10G2400/02
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |