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US2618613A
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Treatment of hydrocarbon conversion catalysts
Assignee: Standard Oil Development Co
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Filing: 1948-10-27
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Granted: 1952-11-18
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Expires: 1968-10-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
- 👤 Julius P Bilisoly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:09
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2154527A
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US2194186A
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US2331473A
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US2336165A
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US2414736A
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US2430724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |