US3520828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic oxide gel and method of preparing the same
Assignee: Mobil Oil AS
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Filing: 1966-05-17
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Granted: 1970-07-21
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Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 Edward J Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:50
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; B01J21/00; B01J21/12; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/088; B01J37/00; B01J2229/00; B01J2229/30; B01J2229/42
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) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |