US2418232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing an inorganic oxide gel
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-05-11
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Granted: 1947-04-01
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Expires: 1964-05-11
Abstract
No abstract record available.
Inventors
- 👤 Milton M Marisic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:41
CPC Classifications
B; B01; B01J; B01J21/00; B01J2/00; B01J2/02; B01J2/06; B01J2/08; B01J21/12; C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/152; C01B33/154; C01B33/1543; C01B33/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1748315A
Cited
US1900859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-31 | 1950-09-30 | 1951-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-31 | 1954-09-30 | 1955-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-31 | 1958-09-30 | 1959-04-01 | $7700.00 | Window Closed / Lapsed |