US3155608A
Expired / Lapsed
US
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Process for reducing metals content of catalytic cracking feedstock
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-12-01
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Granted: 1964-11-03
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Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jack R Hopper
- 👤 Jr George P Reynolds
- 👤 William B Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:57
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G2300/00; C10G2300/10; C10G2300/107; C10G2400/00; C10G2400/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2760907A
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US2769754A
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US2901417A
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US2771401A
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US2889264A
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US2917448A
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US2937134A
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US3071542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |