US3574779A
Expired / Lapsed
US
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Synthesis of paraffinic hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1968-12-06
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Granted: 1971-04-13
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Expires: 1988-12-06
Abstract
Abstract OLEFINIC HYDROCARBONS, AND PARTICULARLY NORMAN OLEFINIC HYDROCARBONS, ARE CONVERTED TO PARAFFINIC HYDROCARBONS CONTAINING ONE CARBON ATOM LESS AND ONE CARBON ATOM MORE THAN THE OLEFINIC HYDROCARBON BY DISPROPORTIONATION OF THE LATTER IN THE PRESENCE OF HYDROGEN AND A METAL OXIDE CATALYST SUCH AS MOLYBDENUM AND COLBALT OXIDES ON ALUMINA WHICH HAVE BEEN PRETREATED WITH OXYGEN PRIOR TO USE THEREOF AS A CATALYST.
Inventors
- 👤 George R Lester
- 👤 Cecelia J Louvar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:41
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/15; C07C2/00; C07C4/00; C07C9/02; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/28; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/882
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |