Patent US3132110A successfully refreshed from Google Patents.
US3132110A
Expired / Lapsed
US
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Coprecipitated alumina-zirconium oxide sulfate-containing catalyst
Assignee: Union Oil Company of California
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Filing: 1959-01-12
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Granted: 1964-05-05
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Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 Rowland C Hansford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:06
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/06; B01J21/066; B01J21/02; B01J21/04; B01J27/00; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB392954A
Cited
US2396758A
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US2444913A
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US2472832A
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US2595056A
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US2894898A
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US2867578A
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US3032599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |