US2865842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking of a hydrocarbon oil with a silica-alumina-tungsten phosphate catalyst composite
Assignee: Sunoco Inc
•
Filing: 1954-12-29
•
Granted: 1958-12-23
•
Expires: 1974-12-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Hirschler
- 👤 Edward J Janoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2500197A
Cited
US2336600A
Cited
US2378209A
Cited
US2496621A
Cited
US2463508A
Cited
US2470190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |