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Patent US3407148A successfully refreshed from Google Patents.
US3407148A
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Minimizing deactivation of aluminosilicate catalysts due to changes in hydration level
Assignee: Mobil Oil AS
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Filing: 1967-02-24
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Granted: 1968-10-22
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Expires: 1987-02-24
Abstract
No abstract record available.
Inventors
- 👤 Sylvander C Eastwood
- 👤 Stephen M Oleck
- 👤 Albert B Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:18
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; B01J29/088; B01J2229/00; B01J2229/30; B01J2229/36; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/13; Y10S502/00; Y10S502/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |