Patent US3595920A successfully refreshed from Google Patents.
US3595920A
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US
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Process for converting an olefin to a product containing higher and lower olefins
Assignee: Gulf Research and Development Co
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Filing: 1969-05-05
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Granted: 1971-07-27
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Expires: 1989-05-05
Abstract
Abstract A PROCESS FOR CONVERTING, BY METATHESIS, AN OLEFIN, PARICULARLY AN ALPHA OLEFIN, TO A PRODUCT CONTAINING A MIXTURE OF OLEFINS OF HIGHER AND LOWER CARBON NUMBER THAN THE OLEFIN CHARGE, WHICH INVOLVES CONTACTING THE OLEFIN CHARGE WITH A NOVEL COMPOSITION CONTAINING ALUMINA, MOLYBENUM OR RHENIUM AND SILVER OR COPPER.
Inventors
- 👤 Alan F Ellis
- 👤 Edward T Sabourin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:09
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/02; C07C6/04; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/66; B01J23/68; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/885; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/28; C07C2523/32; C07C2523/36; C07C2523/38; C07C2523/48; C07C2523/50; C07C2523/54; C07C2523/66; C07C2523/68; C07C2523/70; C07C2523/72; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/885
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |