US3493490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of aluminosilicate catalysts
Assignee: Mobil Oil AS
•
Filing: 1966-03-30
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Granted: 1970-02-03
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Expires: 1986-03-30
Abstract
No abstract record available.
Inventors
- 👤 Charles J Plank
- 👤 Edward J Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:54
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J20/00; B01J20/30; B01J20/34; B01J20/3408; B01J29/00; B01J29/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2908639A
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US2962435A
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US3033778A
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US3075023A
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US3238120A
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US3364135A
Cited
US3239471A
Cited
US3210267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |