US2867578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking a hydrocarbon oil with a silica-alumina-chromium oxide-be-ryllium oxide catalyst composite
Assignee: Sunoco Inc
•
Filing: 1954-12-29
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Granted: 1959-01-06
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Expires: 1974-12-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Hirschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:17
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/26; C10G47/00; C10G47/02; C10G47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2347231A
Cited
US2375757A
Cited
US2518714A
Cited
US2417054A
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US2463508A
Cited
US2647860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |