US3584070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skeletal isomerization of olefins
Assignee: Phillips Petroleum Co
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Filing: 1970-01-22
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Granted: 1971-06-08
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Expires: 1990-01-22
Abstract
Abstract OLEFINS ARE SKELETALLY ISOMERIZED BY CONTACT WITH A CATALYST COMPRISING A COMPOSITE CONTAINING ALUMINA ASSOCIATED WITH THORIUM OXIDE AND/OR CUPRIC OXIDE WHICH IS SUBJECTED TO FLUORIDE TREATMENT.
Inventors
- 👤 Robert B Regier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/72; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2772
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |