US3408286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic cracking with the purging of the regenerated catalyst with a liquid hydrocarbon
Assignee: Sunoco Inc
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Filing: 1967-07-06
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Granted: 1968-10-29
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Peter S Hepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J21/00; B01J21/20; B01J8/00; B01J8/08; B01J8/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2658859A
Cited
US3053752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |