US3579602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin conversion process and catalysts therefor
Assignee: Phillips Petroleum Co
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Filing: 1967-04-03
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Granted: 1971-05-18
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Expires: 1987-04-03
Abstract
Abstract OLEFINS ARE CONVERTED INTO OTHER OLEFINS OF DIFFERENT MOLECULAR WEIGHT BY CONTACT WITH AN OLEFIN REACTION CATALYST, HAVING ACTIVITY FOR DISPROPORTIONATING PROPYLENE ITO ETHYLENE AND BUTENE, WHICH CATALYST AHS BEEN TREATED WITH AN INORGANIC BASE OR A MATERIAL CONVERTIBLE TO AN INORGANIC BASE, FOLLOWED BY TREATMENT WITH A STREAM OF HYDROGEN, CARBON MONOXIDE, A GASEOUS ACYCLIC OLEFIN OR A GASEOUS PARAFFIN.
Inventors
- 👤 Robert E Reusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:10
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/02; C07C6/04
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |