US2492167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming alumina-containing gel beads
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-09-30
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Granted: 1949-12-27
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Expires: 1964-09-30
Abstract
No abstract record available.
Inventors
- 👤 Milton M Marisic
- 👤 Edward M Griest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:47
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J2/00; B01J2/02; B01J2/06; B01J2/08; C; C01; C01F; C01F7/00; C01F7/02; H; H03; H03K; H03K7/00; H03K7/08; H04; H04J; H04J3/00; C01P; C01P2004/00; C01P2004/30; C01P2004/32; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2284248A
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Cited
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US2389378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |